HRID2353858
反应详情
EQUATION
反应方程式
REACTANTS
反应物
PRODUCTS
生成物
AUXILIARIES
试剂、催化剂与溶剂
PROCEDURE
实验过程
To a heated mixture of potassium t-butoxide (371 g, 3.58 mol) in toluene (4 l) at 70° C. was added 2-[(3-Ethoxycarbonyl-propyl)-(toluene-4-sulfonyl)-amino]-benzoic acid methyl ester (750 g, 1.79 mol). After the addition was completed, the mixture was cooled to room temperature then poured into ice water. The extraction with CH2Cl2 was successively done, and organic layer was dried over MgSO4 and concentrated under reduced pressure to afford crude compound 5-Oxo-1-(toluene-4-sulfonyl)-2,3,4,5-tetrahydro-1H-benzo[b]azepine-4-carboxylic acid ethyl ester (450 g) as a mixture of Me and Et esters.
WORKUP
后处理
- additionAfter the addition
- extractionThe extraction with CH2Cl2
- dry with materialorganic layer was dried over MgSO4
- concentrationconcentrated under reduced pressure