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Chemical Structure| 1038508-94-9 Chemical Structure| 1038508-94-9

Structure of 1038508-94-9

Chemical Structure| 1038508-94-9

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Product Details of [ 1038508-94-9 ]

CAS No. :1038508-94-9
Formula : C11H7BrFNO2S
M.W : 316.15
SMILES Code : O=C(OC)C1N=C(Br)SC=1C1C=CC(F)=CC=1
MDL No. :MFCD24387152

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Application In Synthesis of [ 1038508-94-9 ]

* 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 [ 1038508-94-9 ]

[ 1038508-94-9 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 886361-30-4 ]
  • [ 1038508-94-9 ]
YieldReaction ConditionsOperation in experiment
With copper(ll) bromide; isopentyl nitrite; In acetonitrile; at 5 - 65℃; for 2.0h; In an inert atmosphere, copper(II)bromide (69.6 mmol, 1.0 eq) was suspended in acetonitril (300 ml) and cooled to 5-100C followed by the addition of 3- methylbutylnitrite (104 mmol, 1.45 eq) over 15 min. To this reaction mixture the respective 2-aminothiazole derivative (70.0 mmol, 1 eq, free amine) was added in portions over 20 min. at 5-100C. The reaction mixture was then carefully heated to 65C and stirring continued for 2 h. The volatiles were removed under reduced pressure and the residue was purified by column chromatography (silicagel; heptan / EtOAc or DCM / methanol, as the appropriate mixture) to give the respective product. 2-bromo-5-(4-fluoro-phenyl)-thiazole-4-carboxylic acid methyl ester prepared by reaction of <strong>[886361-30-4]2-amino-5-(4-fluoro-phenyl)-thiazole-4-carboxylic acid methyl ester</strong>. LC-MS: tR = 0.97 min; [M+H]+ = 316.1.
With copper(ll) bromide; isopentyl nitrite; In acetonitrile; at 5 - 65℃;Inert atmosphere; In an inert atmosphere, copper(II)bromide (47.3 mmol, 1.0 eq) was suspended in MeCN (200 mL) and cooled to 5-10 C. followed by the addition of 3-methylbutylnitrite (71 mmol, 1.45 eq) over 15 min. To this reaction mixture the respective 2-aminothiazole derivative (47.3 mmol, 1 eq) was added in portions over 35 min at 5-10 C. The reaction mixture was then carefully heated to 65 C. and stirring continued for 2 h. The volatiles were removed under reduced pressure and the black residue was purified by FC (heptane/EtOAc, as the appropriate mixture) to give the products as slightly yellow oils or solids
With copper(ll) bromide; isopentyl nitrite; In acetonitrile; at 5 - 65℃; for 2.33333h;Inert atmosphere; A.1.4 Synthesis of 2-bromo-thiazole-4-carboxylic acid methyl ester Derivatives (General Procedure); In an inert atmosphere, copper(II)bromide (69.6 mmol, 1.0 eq) was suspended in acetonitril (300 ml) and cooled to 5-10 C. followed by the addition of 3-methylbutylnitrite (104 mmol, 1.45 eq) over 15 min. To this reaction mixture the respective 2-aminothiazole derivative (70.0 mmol, 1 eq, free amine) was added in portions over 20 min. at 5-10 C. The reaction mixture was then carefully heated to 65 C. and stirring continued for 2 h. The volatiles were removed under reduced pressure and the residue was purified by column chromatography (silicagel; heptan/EtOAc or DCM/methanol, as the appropriate mixture) to give the respective product.; 2-bromo-5-(4-fluoro-phenyl)-thiazole-4-carboxylic acid methyl esterprepared by reaction of <strong>[886361-30-4]2-amino-5-(4-fluoro-phenyl)-thiazole-4-carboxylic acid methyl ester</strong>. LC-MS: tR=0.97 min; [M+H]+=316.1.
With isopentyl nitrite;copper(ll) bromide; In acetonitrile; at 5 - 65℃; for 2.83333h; A.l.5.3 Synthesis of 2-bromo-thiazole-4-carboxylic acid methyl ester derivatives (general procedure Sandmeyer)Sandmeyer- reaction In an inert atmosphere, copper(II)bromide (47.3 mmol, 1.0 eq) was suspended in MeCN (200 mL) and cooled to 5-100C followed by the addition of 3-methylbutylnitrite (71 mmol, 1.45 eq) over 15 min. To this reaction mixture the respective 2-aminothiazole derivative (47.3 mmol, 1 eq) was added in portions over 35 min at 5-100C. The reaction mixture was then carefully heated to 65C and stirring continued for 2 h. The volatiles <n="49"/>were removed under reduced pressure and the black residue was purified by FC(heptane / EtOAc, as the appropriate mixture) to give the products as slightly yellow oils or solids.2-Bromo-5-(4-fluoro-phenyl)-thiazole-4-carboxylic acid methyl ester LC-MS: tR = 0.97 min; [M+H]+ = 316.09.2-Bromo-5-(4-methyl-phenyl)-thiazole-4-carboxylic acid methyl esterLC-MS: tR = 1.00 min; [M+H]+ = 314.25.2-Bromo-5-(3-methoxy-phenyl)-thiazole-4-carboxylic acid methyl esterLC-MS: tR = 0.97 min; [M+H]+ = 330.20. 2-Bromo-5-(3-chloro-phenyl)-thiazole-4-carboxylic acid methyl esterLC-MS: tR = 1.00 min; [M+H]+ = 332.17.2-Bromo-5-(2-fluoro-phenyl)-thiazole-4-carboxylic acid methyl esterLC-MS: tR = 0.96 min; [M+H]+ = 316.11.2-Bromo-5-(3-trifluoromethyl-phenyl)-thiazole-4-carboxylic acid methyl ester LC-MS: tR = 1.03 min; [M+H]+ = 366.17.

 

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