反应详情

(2-Chlorosulfonyl-1,1-dimethyl-ethyl)-carbamic acid 9H-fluoren-9-ylmethyl ester was prepared by an analogous procedure as described in example 26v) starting from 457 mg (1.2 mmol) 2-(9H-fluoren-9-ylmethoxycarbonylamino)-2-methyl-propane-1-sulfonic acid and 2.3 ml (3.6 equiv.) phosgene (20% in toluene). (2-Chlorosulfonyl-1,1-dimethyl-ethyl)-carbamic acid 9H-fluoren-9-ylmethyl ester was obtained in crude form as a colorless oil. Yield: 503 mg

1. custom(2-Chlorosulfonyl-1,1-dimethyl-ethyl)-carbamic acid 9H-fluoren-9-ylmethyl ester was prepared by an analogous procedure