Synthesis of 1-(1-Arylsulfanylalkyl)indoles and 2,2-Bis[1-(1-arylsulfanylalkyl)indol-3-yl]propanes by Acid-Catalyzed Reactions of Indoles with Aryl Vinyl Sulfides
摘要:
We report a facile synthesis of 1-(1-arylsulfanylalkyl)indoles and 2,2-bis[1-(1-arylsulfanylalkyl)indol-3-yl]propanes under mild conditions. Thus, treatment of 3-substituted indoles with aryl vinyl sulfides in dichloromethane at room temperature in the presence of a catalytic amount of (+/-)-camphor-10-sulfonic acid yields the former indole derivatives in moderate to fair yields. 3-Nonsubstituted indoles can be transformed into the latter indole derivatives in satisfactory yields on treatment with excess aryl vinyl sulfides in the presence of a catalytic amount of the acid under similar conditions.
Synthesis of 1-(1-Arylsulfanylalkyl)indoles and 2,2-Bis[1-(1-arylsulfanylalkyl)indol-3-yl]propanes by Acid-Catalyzed Reactions of Indoles with Aryl Vinyl Sulfides
We report a facile synthesis of 1-(1-arylsulfanylalkyl)indoles and 2,2-bis[1-(1-arylsulfanylalkyl)indol-3-yl]propanes under mild conditions. Thus, treatment of 3-substituted indoles with aryl vinyl sulfides in dichloromethane at room temperature in the presence of a catalytic amount of (+/-)-camphor-10-sulfonic acid yields the former indole derivatives in moderate to fair yields. 3-Nonsubstituted indoles can be transformed into the latter indole derivatives in satisfactory yields on treatment with excess aryl vinyl sulfides in the presence of a catalytic amount of the acid under similar conditions.