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[ CAS No. 70165-31-0 ] {[proInfo.proName]}

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Chemical Structure| 70165-31-0
Chemical Structure| 70165-31-0
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Product Details of [ 70165-31-0 ]

CAS No. :70165-31-0 MDL No. :MFCD01318135
Formula : C7H4N2O2 Boiling Point : -
Linear Structure Formula :- InChI Key :WMHSQCDPPJRWIL-UHFFFAOYSA-N
M.W : 148.12 Pubchem ID :2761108
Synonyms :

Safety of [ 70165-31-0 ]

Signal Word:Warning Class:N/A
Precautionary Statements:P261-P305+P351+P338 UN#:N/A
Hazard Statements:H302-H315-H319-H335 Packing Group:N/A
GHS Pictogram:

Application In Synthesis of [ 70165-31-0 ]

* 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.

  • Upstream synthesis route of [ 70165-31-0 ]
  • Downstream synthetic route of [ 70165-31-0 ]

[ 70165-31-0 ] Synthesis Path-Upstream   1~4

  • 1
  • [ 70165-31-0 ]
  • [ 58553-48-3 ]
YieldReaction ConditionsOperation in experiment
20%
Stage #1: With chloroformic acid ethyl ester; triethylamine In tetrahydrofuran at 0℃; for 0.25 h;
Stage #2: With sodium tetrahydroborate In tetrahydrofuran at 0 - 20℃;
To a solution of [6-CYANONICOTINIC] acid (12g, 0. [081MOL] ; see step (i) above) in THF at [0°C,] [ET3N] (12.4 mL, 0.0892 mol) was added followed by ethyl chloroformate (8.53 mL, 0.0892 mol). The reaction mixture was stirred for 15 min and [NABH4] (6.14 g, 0.162 mol) was added. Then the mixture was stirred at RT overnight, quenched with water and extracted with methylene chloride. The organic layer was concentrated and purified by column chromatography to yield 4g (20percent) of the alcohol.
Reference: [1] Patent: WO2003/101956, 2003, A1, . Location in patent: Page 114
  • 2
  • [ 2398-81-4 ]
  • [ 143-33-9 ]
  • [ 70165-31-0 ]
YieldReaction ConditionsOperation in experiment
22% With chloro-trimethyl-silane; triethylamine In DMF (N,N-dimethyl-formamide) at 110℃; for 10 h; To a solution of the nicotinic acid N-oxide (51 g, 0.37 mol) in 1.2 L [OF DMF, NACN] (54 g, 1.1 mol) was added, followed by triethylamine (255 mL, 1.83 mol) and TMSCI (185 mL). The reaction mixture was stirred at [110°C] for 10 h, filtered and the filtrate was concentrated. The residue was dissolved in 100 mL of 2N HCI and extracted with methylene chloride. The organic layers were combined, concentrated and recrystallised from water to yield 12 g (22percent) of the product.
Reference: [1] Synthesis, 1983, # 4, p. 316 - 319
[2] Chemical Communications, 2004, # 15, p. 1770 - 1771
[3] Patent: WO2003/101956, 2003, A1, . Location in patent: Page 113; 114
[4] Bioorganic and Medicinal Chemistry Letters, 2000, vol. 10, # 4, p. 385 - 389
  • 3
  • [ 2398-81-4 ]
  • [ 7677-24-9 ]
  • [ 79-44-7 ]
  • [ 70165-31-0 ]
Reference: [1] Patent: US4904675, 1990, A,
  • 4
  • [ 70165-31-0 ]
  • [ 496945-97-2 ]
Reference: [1] Patent: EP1445250, 2004, A1, . Location in patent: Page 37
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