Palladium-catalyzed carbonyl allylation by 2-(hydroxymethyl)acrylate derivatives: synthesis of α-methylene-γ-butyrolactones
作者:Yoshiro Masuyama、Yumiko Nimura、Yasuhiko Kurusu
DOI:10.1016/0040-4039(91)80861-y
日期:1991.1
Ethyl 2-(Hydroxymethyl)acrylate derivatives serve as reagents for 2-ethoxycarbonylallylation of carbonyl compounds usingPdCl2(PhCN)2-SnCl2system to produce α-methylene-γ-butyrolactones diastereoselectivity.
Enantio- and Diastereoselective Synthesis of <i>syn</i>-β-Hydroxy-α-vinyl Carboxylic Esters via Reductive Aldol Reactions of Ethyl Allenecarboxylate with 10-TMS-9-Borabicyclo[3.3.2]decane and DFT Analysis of the Hydroboration Pathway
作者:Jeremy Kister、Daniel H. Ess、William R. Roush
DOI:10.1021/ol4025277
日期:2013.11
An enantio- and diastereoselective synthesis of syn-β-hydroxy-α-vinyl carboxylate esters 3 via the reductive aldol reaction of ethyl allenecarboxylate (2) with 10-trimethylsilyl-9-borabicyclo[3.3.2]decane (1R) has been developed. Density functional theory calculations suggest that the allene hydroboration involves the 1,4-reduction of 2 with the 1R, leading directly to dienolborinate Z-(O)-8a.
Diastereoselective reactions of δ-siloxyallylzirconium reagents with aldehydes
作者:Andrew J. Clark、Ismail Kasujee、Joanne L. Peacock
DOI:10.1016/0040-4039(95)01418-h
日期:1995.9
delta-Siloxyallylzirconium reagent (2) was produced by reaction of the TBDMS protected derivative (6) with zirconocene butene complex ''Cp(2)Zr''. Treatment of the delta-siloxyallylzirconium reagent (2) with various aldehydes provided predominantly anti-homoallylic alcohols
Takahara, Jun P.; Masuyama, Yoshiro; Kurusu, Yasuhiko, Journal of the American Chemical Society, 1992, vol. 114, # 7, p. 2577 - 2586
作者:Takahara, Jun P.、Masuyama, Yoshiro、Kurusu, Yasuhiko
DOI:——
日期:——
Umpolung of Vinyloxiranes: Regio- and Stereoselectivity of the In/Pd-Mediated Allylation of Carbonyl Compounds