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Acta Chimica Sinica ›› 2000, Vol. 58 ›› Issue (4): 473-480. Previous Articles Next Articles
Original Articles
周永贵;李安虎;戴立信;侯雪龙
发布日期:
Zhou Yonggui;Li Anhu;Dai Lixin;Hou Xuelong
Published:
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Under the phase-transfer condition (CH3CN/KOH/RT), the reaction of the vinyl-type sulfonium ylides and aldehydes gives mainly trans- vinyloxirane, while at low temperature in the presence of lithium bromide (LiBr/KHMDS/THF/-95℃) the main product is cis-vinyloxiranes. A possibel mechanism for the tuning of the reaction stereochemistry by simply varing the reaction conditions is proposed.
Key words: EPOXIDE, LITHIUM BROMIDE, PHASE TRANSFER CATALYSIS
CLC Number:
O621
Zhou Yonggui;Li Anhu;Dai Lixin;Hou Xuelong. Stereoselective synthesis of vinyloxirane via sulfonium ylides[J]. Acta Chimica Sinica, 2000, 58(4): 473-480.
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