[ CAS No. 2026-42-8 ] {[proInfo.proName]}

Name: 2026-42-8|Diethyl (thiophen-2-ylmethyl)phosphonate|98%
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SKU: A109102
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Quality Control of [ 2026-42-8 ]

COA NMR CNMR HPLC LC-MS

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SDS Specification

Alternatived Products of [ 2026-42-8 ]

Product Details of [ 2026-42-8 ]

CAS No. :	2026-42-8	MDL No. :	MFCD00128457
Formula :	C₉H₁₅O₃PS	Boiling Point :	-
Linear Structure Formula :	-	InChI Key :	GOJBUVQDOFHBLF-UHFFFAOYSA-N
M.W :	234.25	Pubchem ID :	4185897
Synonyms :

Safety of [ 2026-42-8 ]

Signal Word:	Warning	Class:	N/A
Precautionary Statements:	P261-P305+P351+P338	UN#:	N/A
Hazard Statements:	H315-H319-H335	Packing Group:	N/A
GHS Pictogram:

Application In Synthesis of [ 2026-42-8 ]

* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.

Downstream synthetic route of [ 2026-42-8 ]

[ 2026-42-8 ] Synthesis Path-Downstream 1~88

1
[ 2026-42-8 ]
[ 182246-87-3 ]

Reference： [1]Journal of the American Chemical Society,1947,vol. 69,p. 2248

2
[ 98-03-3 ]
[ 2026-42-8 ]
[ 13640-78-3 ]

Reference： [1]Synthesis,1986,p. 620 - 623

3
[ 98-03-3 ]
[ 2026-42-8 ]
[ 18266-94-9 ]
[ 13640-78-3 ]

Reference： [1]Heterocycles,1991,vol. 32,p. 991 - 1002
[2]Heterocycles,1991,vol. 32,p. 991 - 1002

4
[ 765-50-4 ]
[ 122-52-1 ]
[ 2026-42-8 ]

Yield	Reaction Conditions	Operation in experiment
99%	at 120 - 145℃; for 4.5h;	A mixture of 2-chloromethylthiophene 6 (183.6 g, 1385 mmol) and triethyl phosphate (241.5 g, 1454 mmol) was heated at 140- 145C for 3 hours, the resulting liquid was cooled to 120 C before nitrogen bubble was blown underneath the surface for 1.5 hours. The liquid was cooled to room temperature to afford 324 g of product and was used in the subsequent reaction without further purification (99%). 1H NMR (CDCL3) 8 7.38 (DD, J=4. 8,0. 8 Hz, 1H), 7.14-7. 18 (m, 1H), 6.90-7. 00 (m, J=5. 1, 1H), 4.03 (q, J=7. 3 Hz, 4H), 3.40 (s, 1H), 3. 30 (s, 1H), 1.26 (t, J=7. 2 Hz, 6H).

Reference： [1]Journal of the Chemical Society. Chemical communications,1993,p. 90 - 92
[2]Patent: WO2004/65384,2004,A1 .Location in patent: Page 33; 14/19
[3]Synthetic Communications,2005,vol. 35,p. 2079 - 2083
[4]Journal of Materials Chemistry,2009,vol. 19,p. 2975 - 2985
[5]Journal of Heterocyclic Chemistry,1980,vol. 17,p. 1259 - 1264
[6]Journal of Medicinal Chemistry,1998,vol. 41,p. 3515 - 3529
[7]Synthesis,1986,p. 620 - 623
[8]Journal of the American Chemical Society,2006,vol. 128,p. 4911 - 4916

5
[ 1603-79-8 ]
[ 2026-42-8 ]
ethyl (E)-2-phenyl-3-(2-thienyl)propenoate [ No CAS ]
ethyl (Z)-2-phenyl-3-(2-thienyl)propenoate [ No CAS ]

Reference： [1]Journal of Chemical Research, Miniprint,1984,p. 2801 - 2821

6
[ 1192-58-1 ]
[ 2026-42-8 ]
(E)-1-(N-methylpyrrol-2-yl)-2-(2-thienyl)ethylene [ No CAS ]

Reference： [1]Journal of the Chemical Society. Perkin transactions I,1987,p. 2631 - 2636

7
[ 941-98-0 ]
[ 2026-42-8 ]
[ 88535-57-3 ]

Reference： [1]Journal of Heterocyclic Chemistry,1981,vol. 18,p. 973 - 975

8
[ 5381-20-4 ]
[ 2026-42-8 ]
[ 92690-96-5 ]

Reference： [1]Journal of Heterocyclic Chemistry,1984,vol. 21,p. 185 - 192

9
[ 3541-37-5 ]
[ 2026-42-8 ]
[ 30689-68-0 ]

Reference： [1]Acta Chemica Scandinavica,1996,vol. 50,p. 71 - 76
[2]Journal of Heterocyclic Chemistry,1984,vol. 21,p. 185 - 192

10
[ 930-97-2 ]
[ 2026-42-8 ]
[ 70259-50-6 ]

Reference： [1]Journal of Heterocyclic Chemistry,1986,vol. 23,p. 517 - 521

11
[ 22099-23-6 ]
[ 2026-42-8 ]
[ 92691-14-0 ]

Reference： [1]Journal of Heterocyclic Chemistry,1984,vol. 21,p. 185 - 192

12
[ 24372-47-2 ]
[ 2026-42-8 ]
[ 148080-34-6 ]

Reference： [1]Journal of the Chemical Society. Chemical communications,1993,p. 90 - 92

13
[ 37893-28-0 ]
[ 2026-42-8 ]
[ 110338-96-0 ]

Reference： [1]Journal of the Chemical Society. Perkin transactions I,1987,p. 2631 - 2636

14
[ 23985-81-1 ]
[ 2026-42-8 ]
[ 92691-09-3 ]

Reference： [1]Journal of Heterocyclic Chemistry,1984,vol. 21,p. 185 - 192

15
[ 2026-42-8 ]
[ 5960-69-0 ]
[ 95854-47-0 ]
[ 95854-37-8 ]

Reference： [1]Journal of Heterocyclic Chemistry,1984,vol. 21,p. 1775 - 1779

16
[ 2026-42-8 ]
[ 26231-78-7 ]
[ 26263-68-3 ]

Reference： [1]Heterocycles,1991,vol. 32,p. 991 - 1002

17
[ 2026-42-8 ]
[ 135735-52-3 ]
[ 26231-79-8 ]

Reference： [1]Heterocycles,1991,vol. 32,p. 991 - 1002

18
[ 2026-42-8 ]
[ 66768-63-6 ]
(Azido-4' thienyl-3')-1 (thienyl-2'')-2 ethene [ No CAS ]

Reference： [1]Journal of Heterocyclic Chemistry,1986,vol. 23,p. 517 - 521

19
[ 56473-97-3 ]
[ 2026-42-8 ]
(Azido-3' thienyl-2')-1 (thienyl-2'')-2 ethene [ No CAS ]

Reference： [1]Journal of Heterocyclic Chemistry,1986,vol. 23,p. 517 - 521

20
[ 2026-42-8 ]
[ 148080-35-7 ]
[ 148836-17-3 ]

Reference： [1]Journal of the Chemical Society. Chemical communications,1993,p. 90 - 92
[2]Tetrahedron Letters,1993,vol. 34,p. 1747 - 1750

21
[ 2026-42-8 ]
[ 148080-39-1 ]
Diethyl-{4-[(E)-2-(5-{(E)-2-[5-((E)-2-thiophen-2-yl-vinyl)-thiophen-2-yl]-vinyl}-thiophen-2-yl)-vinyl]-phenyl}-amine [ No CAS ]

Reference： [1]Journal of the Chemical Society. Chemical communications,1993,p. 90 - 92

22
[ 2026-42-8 ]
[ 120654-22-0 ]
Acetic acid 6-{methyl-[4-((E)-2-thiophen-2-yl-vinyl)-phenyl]-amino}-hexyl ester [ No CAS ]

Reference： [1]Journal of the Chemical Society. Chemical communications,1994,p. 369 - 372

23
[ 2026-42-8 ]
[ 104-87-0 ]
[ 86474-73-9 ]

Reference： [1]Journal of Heterocyclic Chemistry,1983,vol. 20,p. 487 - 490

24
[ 2026-42-8 ]
[ 66-77-3 ]
[ 88535-55-1 ]

Reference： [1]Journal of Heterocyclic Chemistry,1980,vol. 17,p. 1259 - 1264

25
[ 2026-42-8 ]
[ 100-52-7 ]
[ 3783-65-1 ]

Reference： [1]Journal of Heterocyclic Chemistry,1983,vol. 20,p. 1143 - 1148

26
[ 2026-42-8 ]
[ 66-99-9 ]
[ 88535-56-2 ]

Reference： [1]Journal of Heterocyclic Chemistry,1980,vol. 17,p. 1259 - 1264

27
[ 2026-42-8 ]
[ 120-21-8 ]
[ 148080-33-5 ]

Reference： [1]Journal of the Chemical Society. Chemical communications,1993,p. 90 - 92
[2]Tetrahedron Letters,1993,vol. 34,p. 1747 - 1750

28
[ 2026-42-8 ]
[ 4707-71-5 ]
[ 80819-43-8 ]

Reference： [1]Journal of Heterocyclic Chemistry,1981,vol. 18,p. 1457 - 1459

29
[ 2026-42-8 ]
[ 529-20-4 ]
[ 86474-72-8 ]

Reference： [1]Journal of Heterocyclic Chemistry,1983,vol. 20,p. 487 - 490

30
[ 2026-42-8 ]
[ 620-23-5 ]
[ 86474-71-7 ]

Reference： [1]Journal of Heterocyclic Chemistry,1983,vol. 20,p. 487 - 490

31
[ 1121-60-4 ]
[ 2026-42-8 ]
[ 28771-88-2 ]

Reference： [1]Synthesis,1995,p. 1131 - 1134

32
[ 872-85-5 ]
[ 2026-42-8 ]
[ 66417-75-2 ]

Reference： [1]Journal of Organic Chemistry,1997,vol. 62,p. 5755 - 5765
[2]Journal of Physical Organic Chemistry,1997,vol. 10,p. 514 - 524
[3]Synthesis,1995,p. 1131 - 1134

33
[ 500-22-1 ]
[ 2026-42-8 ]
trans-1-(3-pyridyl)-2-(2-thienyl)ethene [ No CAS ]

Reference： [1]Synthesis,1995,p. 1131 - 1134

34
[ 765-50-4 ]
[ 78-40-0 ]
[ 2026-42-8 ]

Yield	Reaction Conditions	Operation in experiment
		Diethyl 2-thienylmethylphosphonate (7). A mixture of 2-chloromethylthiophene 6 (183.6 g, 1385 mmol) and triethyl phosphate (241.5 g, 1454 mmol) was heated at 140-145 C. for 3 hours, the resulting liquid was cooled to 120 C. before nitrogen bubble was blown underneath the surface for 1.5 hours. The liquid was cooled to room temperature to afford 324 g of product and was used in the subsequent reaction without further purification (99%). 1H NMR (CDCl3) delta 7.38 (dd, J=4.8, 0.8 Hz, 1H), 7.14-7.18 (m, 1H), 6.90-7.00 (m, J=5.1, 1H), 4.03 (q, J=7.3 Hz, 4H), 3.40 (s, 1H), 3.30 (s, 1H) Hz, 6H).

Reference： [1]Synthesis,1995,p. 1131 - 1134
[2]Patent: US2005/23507,2005,A1
[3]Journal of Materials Chemistry A,2018,vol. 6,p. 10990 - 11004

35
[ 98-03-3 ]
[ 2026-42-8 ]
[ 13640-78-3 ]

Reference： [1]Organic and Biomolecular Chemistry,2010,vol. 8,p. 5431 - 5441
[2]Acta Chemica Scandinavica,1996,vol. 50,p. 71 - 76

36
[ 2026-42-8 ]
[ 174839-58-8 ]
1-(thieno<3,2-a>dibenzothiophen-2-yl)-2-(thien-2-yl)ethene [ No CAS ]

Reference： [1]Acta Chemica Scandinavica,1996,vol. 50,p. 71 - 76

37
[ 2026-42-8 ]
[ 93-02-7 ]
2-[(E)-2-(2,5-Dimethoxy-phenyl)-vinyl]-thiophene [ No CAS ]

Reference： [1]Molecular Crystals and Liquid Crystals Science and Technology, Section A: Molecular Crystals and Liquid Crystals,1996,vol. 276-277,p. 349 - 360

38
[ 2026-42-8 ]
[ 7310-97-6 ]
1,4-Dimethoxy-2,5-bis[2-(thien-2-yl)ethenyl]benzene [ No CAS ]

Reference： [1]Molecular Crystals and Liquid Crystals Science and Technology, Section A: Molecular Crystals and Liquid Crystals,1996,vol. 276-277,p. 349 - 360

39
[ 2026-42-8 ]
[ 184529-07-5 ]
[4-((E)-2-{5,5-Dimethyl-3-[1-thiophen-2-yl-meth-(E)-ylidene]-cyclohex-1-enyl}-vinyl)-phenyl]-diethyl-amine [ No CAS ]

Reference： [1]Chemical Communications,1996,p. 2279 - 2280

40
[ 100943-46-2 ]
[ 2026-42-8 ]
[ 197807-74-2 ]

Reference： [1]Journal of the American Chemical Society,1997,vol. 119,p. 10774 - 10784
[2]Angewandte Chemie - International Edition,2011,vol. 50,p. 2799 - 2803

41
[ 2026-42-8 ]
[ 197807-83-3 ]
(E,E,E,E,E)-1,2-bis[5-[5'-(2''-thienylvinyl)-(3'-octyl-2'-thienylvinyl)]-4-octyl-2-thienyl]ethylene [ No CAS ]

Reference： [1]Journal of the American Chemical Society,1997,vol. 119,p. 10774 - 10784

42
[ 2026-42-8 ]
[ 188565-06-2 ]
[ 197807-86-6 ]

Reference： [1]Journal of the American Chemical Society,1997,vol. 119,p. 10774 - 10784

43
[ 2026-42-8 ]
(E,E,E,E,E,E)-1,2-bis[5-{5'-[5''-(5'''-formyl-3''',4'''-dibutyl-2'''-thienylvinyl)-3'',4''-dibutyl-2''-thienylvinyl]-3,'4'-dibutyl-2'-thienylvinyl}-3,4-dibutyl-2-thienyl]ethylene [ No CAS ]
(E,E,E,E,E,E)-1,2-bis[5-(5'-{5''-[5'''-(2''''-thienylvinyl)-3''',4'''-dibutyl-2'''-thienylvinyl]-3'',4''-dibutyl-2''-thienylvinyl}-3,'4'-dibutyl-2'-thienylvinyl)-3,4-dibutyl-2-thienyl]ethylene [ No CAS ]

Reference： [1]Journal of the American Chemical Society,1997,vol. 119,p. 10774 - 10784

44
[ 2026-42-8 ]
[ 197807-75-3 ]
[ 197807-76-4 ]

Reference： [1]Journal of the American Chemical Society,1997,vol. 119,p. 10774 - 10784
[2]Angewandte Chemie - International Edition,2011,vol. 50,p. 2799 - 2803

45
[ 2026-42-8 ]
[ 92940-24-4 ]
[ 206049-75-4 ]

Reference： [1]Journal of Materials Chemistry,1998,vol. 8,p. 833 - 835

46
[ 2026-42-8 ]
[ 181046-74-2 ]
4,5-Dimethyl-2-((2E,4E)-5-thiophen-2-yl-penta-2,4-dienylidene)-[1,3]dithiole [ No CAS ]

Reference： [1]Journal of Materials Chemistry,1998,vol. 8,p. 1185 - 1192

47
[ 2026-42-8 ]
[ 189261-98-1 ]
7-tert-Butyl-3,3-dimethyl-5-((E)-2-thiophen-2-yl-vinyl)-2,3-dihydro-benzofuran [ No CAS ]

Reference： [1]Journal of Medicinal Chemistry,1998,vol. 41,p. 3515 - 3529

48
[ 2026-42-8 ]
[ 20432-35-3 ]
Dimethyl-[4-((1E,3E)-4-thiophen-2-yl-buta-1,3-dienyl)-phenyl]-amine [ No CAS ]

Reference： [1]Journal of Organometallic Chemistry,1999,vol. 583,p. 111 - 119

51
[ 188290-36-0 ]
[ 10419-77-9 ]
[ 2026-42-8 ]

Reference： [1]Tetrahedron Letters,2000,vol. 41,p. 617 - 620
[2]Journal of Organic Chemistry,2003,vol. 68,p. 7254 - 7265

52
[ 2026-42-8 ]
[ 4885-02-3 ]
[ 362526-27-0 ]

Reference： [1]Synthetic Communications,2001,vol. 31,p. 1361 - 1365

53
[ 2026-42-8 ]
[ 150302-50-4 ]
3,4-dibutoxy-2,5-bis(2'-thienylvinyl)thiophene [ No CAS ]

Reference： [1]Heteroatom Chemistry,2001,vol. 12,p. 414 - 417

54
[ 30689-46-4 ]
[ 2026-42-8 ]
2-(2-thienylethenyl)benzo[1,2-b:4,3-b']dithiophene [ No CAS ]

Reference： [1]Bulletin of the Chemical Society of Japan,2002,vol. 75,p. 551 - 557

55
[ 24372-48-3 ]
[ 2026-42-8 ]
(E)-1-[5-(2-thiophen-2-yl-vinyl)thiophen-2-yl]-piperidine [ No CAS ]

Reference： [1]Journal of Organometallic Chemistry,2002,vol. 655,p. 70 - 88

56
[ 2026-42-8 ]
[ 159828-78-1 ]
2,2'-dimethoxy-3-(E)-(2-(2-thienyl)ethene)-1,1'-binaphthalene [ No CAS ]

Reference： [1]Journal of Organometallic Chemistry,2002,vol. 655,p. 70 - 88

57
[ 2026-42-8 ]
2,2'-dimethoxy-6,6'-dicarboxaldehyde-1,1'-binaphthalene [ No CAS ]
2,2'-dimethoxy-6,6'-bis(E-2-(2-thienyl)ethene)-1,1'-binaphthalene [ No CAS ]

Reference： [1]Journal of Organometallic Chemistry,2002,vol. 655,p. 70 - 88

58
[ 2026-42-8 ]
[ 499999-87-0 ]

Reference： [1]Heterocycles,2002,vol. 57,p. 1935 - 1946

59
[ 2026-42-8 ]
[ 151903-52-5 ]
2,5-bis[2-(2-thienyl)vinyl]-1,4-bis(hexyloxy)benzene [ No CAS ]
4-[(1E)-2-(2-thienyl)vinyl]-2,5-dihexyloxybenzaldehyde [ No CAS ]

Reference： [1]Tetrahedron,2003,vol. 59,p. 5193 - 5198

60
[ 32364-72-0 ]
[ 2026-42-8 ]
[ 38260-92-3 ]

Reference： [1]Journal of Organic Chemistry,2003,vol. 68,p. 7254 - 7265

61
[ 2026-42-8 ]
[ 13130-50-2 ]
(E,E)-5,5''-bis[2-(2-thienyl)-1-ethenyl]-2,2':5',2''-terthiophene [ No CAS ]

Reference： [1]Journal of Organic Chemistry,2003,vol. 68,p. 7254 - 7265

62
[ 2026-42-8 ]
[ 609369-41-7 ]
[ 60602-80-4 ]

Reference： [1]Journal of Organic Chemistry,2003,vol. 68,p. 7254 - 7265

63
[ 2026-42-8 ]
[ 39511-07-4 ]
[ 24658-68-2 ]

Reference： [1]Journal of Organic Chemistry,2003,vol. 68,p. 7254 - 7265

64
[ 636-72-6 ]
[ 122-52-1 ]
[ 2026-42-8 ]

Yield	Reaction Conditions	Operation in experiment
70%	With tetra-(n-butyl)ammonium iodide; at 120℃; for 24h;Inert atmosphere;	20 mL of a tubular reactor was charged with 2-thiophene methanol (57.0 mg, 0.50 mmol), triethyl phosphite(166.0 mg, 1.0 mmol, 2.0 equiv.) And tetrabutylammonium iodide (9.3 mg, 0.025 mmol, 5 mol%),Vacuum nitrogen, and then heated to 120 C for 24 h under solvent-free conditions. After the TLC monitoring reaction was complete, the product was purified by column chromatography and the yield was 70%.

Reference： [1]Patent: CN106543221,2017,A .Location in patent: Paragraph 0070; 0071; 0072; 0073
[2]Green Chemistry,2018,vol. 20,p. 3408 - 3413
[3]Tetrahedron Letters,2003,vol. 44,p. 7989 - 7992

65
[ 2026-42-8 ]
[ 94-21-3 ]
Methyl-[4-((E)-2-thiophen-2-yl-vinyl)-phenyl]-amine [ No CAS ]

Reference： [1]Tetrahedron Letters,2004,vol. 45,p. 1473 - 1475

66
[ 2026-42-8 ]
[ 94-21-3 ]
Methyl-[4-((E)-2-thiophen-2-yl-vinyl)-phenyl]-amine [ No CAS ]
3-{Methyl-[4-((E)-2-thiophen-2-yl-vinyl)-phenyl]-amino}-propionitrile [ No CAS ]

Reference： [1]Tetrahedron Letters,2004,vol. 45,p. 1473 - 1475

67
[3-((E)-2-{4-[Bis-(4-methoxy-phenyl)-amino]-phenyl}-vinyl)-5,5-dimethyl-cyclohex-2-en-(E)-ylidene]-acetaldehyde [ No CAS ]
[ 2026-42-8 ]
[4-((E)-2-{5,5-Dimethyl-3-[(E)-3-thiophen-2-yl-prop-2-en-(E)-ylidene]-cyclohex-1-enyl}-vinyl)-phenyl]-bis-(4-methoxy-phenyl)-amine [ No CAS ]

Reference： [1]Tetrahedron Letters,2005,vol. 46,p. 3913 - 3916

68
[ 188290-36-0 ]
[ 50-00-0 ]
[ 122-52-1 ]
[ 2026-42-8 ]
[ 71702-74-4 ]

Reference： [1]Journal of Organic Chemistry,2005,vol. 70,p. 6004 - 6017

69
[ 862974-54-7 ]
[ 2026-42-8 ]
2-[2,5-dipropyl-4-(2-thiophen-2-ylvinyl)phenyl]-5,5-dimethyl[1,3]dioxane [ No CAS ]

Reference： [1]Journal of Organic Chemistry,2005,vol. 70,p. 6004 - 6017

70
[ 862974-56-9 ]
[ 2026-42-8 ]
2-[2,5-dipropoxy-4-(2-thiophen-2-ylvinyl)phenyl]-5,5-dimethyl[1,3]dioxane [ No CAS ]

Reference： [1]Journal of Organic Chemistry,2005,vol. 70,p. 6004 - 6017

71
[ 863545-32-8 ]
[ 2026-42-8 ]
10-hexyl-7-(2-thiophen-2-yl-vinyl)-10<i>H</i>-phenothiazine-3-carbaldehyde [ No CAS ]

Reference： [1]Tetrahedron Letters,2005,vol. 46,p. 5273 - 5276

72
[ 883236-47-3 ]
[ 2026-42-8 ]
bis[4-(5-formyl-2-thienyl)phenyl]-{4-[5-(2-thienylethen-2-yl)-2-thienyl]phenyl}amine [ No CAS ]
bis{4-[5-(2-thienylethen-2-yl)-2-thienyl]phenyl}-[4-(5-formyl-2-thienyl)phenyl]amine [ No CAS ]
tris{4-[5-(2-thienylethen-2-yl)-2-thienyl]phenyl}amine [ No CAS ]

Reference： [1]Journal of the American Chemical Society,2006,vol. 128,p. 3459 - 3466

73
[ 883236-47-3 ]
[ 2026-42-8 ]
bis{4-[5-(2-thienylethen-2-yl)-2-thienyl]phenyl}-[4-(5-formyl-2-thienyl)phenyl]amine [ No CAS ]
tris{4-[5-(2-thienylethen-2-yl)-2-thienyl]phenyl}amine [ No CAS ]

Reference： [1]Journal of the American Chemical Society,2006,vol. 128,p. 3459 - 3466

74
[ 883236-47-3 ]
[ 2026-42-8 ]
tris{4-[5-(2-thienylethen-2-yl)-2-thienyl]phenyl}amine [ No CAS ]

Reference： [1]Journal of the American Chemical Society,2006,vol. 128,p. 3459 - 3466

75
[ 2026-42-8 ]
[ 100-10-7 ]
[ 223377-42-2 ]

Yield	Reaction Conditions	Operation in experiment
20%		Under an ice-bath, sodium methoxide (130 mg, 2.4 mmol) was added to a <strong>[2026-42-8]diethyl (thiophen-2-ylmethyl)phosphonate</strong> (562 mg, 2.4 mmol) solution in anhydrous THF (1.5 mL). The mixture was stirred for at 0 C. for 30 minutes. Then 4-(dimethylamino)benzaldehyde (120 mg, 0.8 mmol) in anhydrous THF was syringed by drops. After addition, removed the ice-bath and kept stirring overnight at room temperature. The solvent was evaporated in vacuum and the residue was purified by silica gel flash column chromatography to afford the target compound as exclusive E configuration. 20% yield, yellow solid. 1H NMR (400 MHz, CD3COCD3) delta 7.38 (d, J=9.2 Hz, 2H), 7.24 (d, J=5.2 Hz, 1H), 7.14 (d, J=16.0 Hz, 1H), 7.04 (d, J=3.2 Hz, 1H), 6.98 (dd, J=4.8 Hz, 3.2 Hz, 1H), 6.87 (d, J=16.4 Hz, 1H), 6.73 (d, J=8.8 Hz, 2H),2.95 (s, 6H); 13C NMR (100.6 MHz, CDCl3) delta 150.3, 143.8, 128.5, 127.5, 127.4, 127.3, 124.8, 123.1, 117.4, 112.4, 39.6.

Reference： [1]Journal of Materials Chemistry,2009,vol. 19,p. 2975 - 2985
[2]Patent: US2017/189566,2017,A1 .Location in patent: Paragraph 0236
[3]Tetrahedron Letters,2006,vol. 47,p. 4961 - 4964

76
[ 2026-42-8 ]
[ 113953-72-3 ]
[ 888217-36-5 ]

Reference： [1]Journal of the American Chemical Society,2006,vol. 128,p. 4911 - 4916

77
[ 2026-42-8 ]
[ 63619-28-3 ]
[ 926634-42-6 ]