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Convenient Synthesis of 3-- and 3-Alkyl-Substituted 3-Sulfolenes
Tso, Hsi-Hwa,Chou, Ta-shue,Lai, Yu-Ling
, p. 4138 - 4141 (2007/10/02)
3--3-sulfolenes (5) were conveniently synthesized by a sequence of mesylation, elimination, and Michael addition reactions of 4-hydroxyalkylated 2-sulfolenes (2), which were prepared regioselectively via ultrasound-promoted allylzincation of 4-bromo-2-sulfolene (1). 3-Alkyl-3-sulfolenes were synthesized from desulfurization of 5.The application of the sequence was exemplified with the simple synthesis of α-myrcene.
