Synthesis of 2-[1(alkoxycarbonyl)alkyl]-3-methylbenzothiazolines and 3-methyl-2-(2-oxoalkyl)benzothiazolines by the direct alkylation of lithium enolates with 3-methylbenzothiazolium salts
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Chikashita,Takegami,Yanase,Itoh
p. 3389 - 3391
(2007/10/02)
NOVEL ALDOL-TYPE REACTION UTILIZING 3-METHYL-2-PHENYL-2-(2-OXOALKYL)BENZOTHIAZOLINE AS AN ENOLATE TRANSFERRING REAGENT
An enolate transfer-type aldol reaction of the title benzothiazoline with aldehydes was successfully achieved in the presence of SnCl4 to afford the cross aldol products.