Co(III)-salen catalyzed carbenoid reaction: Stereoselective [2,3]sigmatropic rearrangement of S-ylides derived from allyl aryl sulfides
作者:Tsutomu Fukuda、Tsutomu Katsuki
DOI:10.1016/s0040-4039(97)00639-4
日期:1997.5
Allyl aryl sulfides and diazoacetic acid esters react in the presence of optically active Co(III)-salen complex (4) with good enantioselectivity, to give the [2,3]sigmatropic rearrangement products, 2-arylthio-3-aryl-4-pentenoic acid esters, via the corresponding S-ylides.
WARDELL J. L.; GRANT D. W., J. ORGANOMETAL. CHEM., 1980, 198, NO 2, 121-129
作者:WARDELL J. L.、 GRANT D. W.
DOI:——
日期:——
Catalytic and asymmetric [2,3]sigmatropic rearrangement: Co(III)-salen catalyzed S-ylide formation from allyl aryl sulfides and their rearrangement
作者:Tsutomu Fukuda、Ryo Irie、Tsutomu Katsuki
DOI:10.1016/s0040-4020(98)01065-5
日期:1999.1
Co(III)-salen complex (8-Br) provided 3-substituted 2-arylthio-4-pentenoic acid esters stereoselectively by way of enantioselective S-ylide formation and subsequent diastereoselective [2,3]sigmatropicrearrangement. For example, the reaction of cinnamyl phenyl sulfide and (−)-menthyl α-diazoacetate provided (−)-menthyl (2R,3S)-2-phenylthio-3-phenyl-4-pentenoate of 74% de preferentially.