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HRID1675559

反应详情

EQUATION

反应方程式

HRID 1675559 的结构方程式

REACTANTS

反应物

2
结构：O=C(O)C(F)(F)F
HCID6422

未命名化合物

结构：COC(=O)c1sc(C#CC(C)(C)C)cc1NC(=O)OC(C)(C)C
HCID24989345

未命名化合物

PRODUCTS

生成物

1
结构：COC(=O)c1sc(C#CC(C)(C)C)cc1N
HCID24989346

未命名化合物

收率 137.9%

AUXILIARIES

试剂、催化剂与溶剂

1
结构：ClCCl
溶剂HCID6344

Dichloromethane

CH2Cl2

2 次

PROCEDURE

实验过程

To a solution of 5-(3,3-dimethyl-but-1-ynyl)-3-(tert-butoxycarbonyl)amino-thiophene-2-carboxylic acid methyl ester (4.344 g, 9.58 mmol) in CH2Cl2 (30 mL) is added trifluoroacetic acid (30 mL), and the mixture is stirred at room temperature overnight. Then it is evaporated to dryness, obtained residue is redissolved in CH2Cl2 and washed with aqueous NaHCO3 and brine. Organic fraction is separated, dried over Na2SO4, and concentrated to give 3.135 g of crude 5-(3,3-dimethyl-but-1-ynyl)-3-amino-thiophene-2-carboxylic acid methyl ester.

WORKUP

后处理

  1. customThen it is evaporated to dryness
  2. customobtained residue
  3. washwashed with aqueous NaHCO3 and brine
  4. customOrganic fraction is separated
  5. dry with materialdried over Na2SO4
  6. concentrationconcentrated