Kishida,Y.; Nakamura,N., Chemical and pharmaceutical bulletin, 1969, vol. 17, p. 2424 - 2435
作者:Kishida,Y.、Nakamura,N.
DOI:——
日期:——
Rappe; Andersson, Arkiv foer Kemi, 1965, vol. 24, p. 303,308
作者:Rappe、Andersson
DOI:——
日期:——
Carboxylate-Directed Tandem Functionalisations of α,β-Dihaloalkenoic Acids with 1-Alkynes: A Straightforward Access to (Z)-Configured, α,β-Substituted γ-Alkylidenebutenolides
and stereoselectively leads to rarely described (Z)‐3‐halo‐5‐ylidene‐5H‐furan‐2‐ones. These compounds are subsequently able to undergo classical Pd‐catalysed cross‐coupling reactions, providing 3‐substituted and 3,4‐disubstituted 5‐ylidene‐5H‐furan‐2‐ones (see scheme).
Preparation of Bromoiodopropenoic Acids by Stereospecific Nucleophilic Substitution at Vinylic Carbon
作者:Alan Lough、A. Bruce McKague
DOI:10.1080/00397910600941430
日期:2006.11.1
Abstract The bromoiodopropenoic acids (E)‐2‐bromo‐3‐iodopropenoic acid 5 and (Z)‐2‐bromo‐3‐iodopropenoic acid 6 were prepared by stereospecific nucleophilicsubstitution of the corresponding vinylic bromides. The structure of the (Z)‐isomer was confirmed by X‐ray crystallography.
摘要 通过相应乙烯基溴的立体有择亲核取代制备了溴碘丙酸 (E)-2-溴-3-碘丙酸 5 和 (Z)-2-溴-3-碘丙酸 6。(Z)-异构体的结构由 X 射线晶体学证实。