Efficient methods for the preparation of acetylenic ketones
作者:H.D. Verkruijsse、Y.A. Heus-Kloos、L. Brandsma
DOI:10.1016/0022-328x(88)80002-0
日期:1988.1
A number of acetylenicketones RCCC(O)R′ have been obtained in good yields from lithiated acetylenes RCCLi and acetic anhydride, N,N-dimethylacetamide, or N,N-dimethylbenzamide. The most convenient and general method consists of treating alkynylzinc chlorides with acid halides R′C(O)Cl. Benzoyl chloride (R′ = Ph), acryloyl chloride (R′ = CH2CH), and butynoyl chloride (R′ = C2H5CC) react only
从锂化乙炔RC CLi和乙酸酐,N,N-二甲基乙酰胺或N,N-二甲基苯甲酰胺以良好的产率获得了许多炔酮RC = CC(= O)R′ 。最方便,最通用的方法是用酰基卤R'C(= O)Cl处理炔基氯化锌。苯甲酰氯(R'= Ph),丙烯酰氯(R'= CH 2 = CH )和丁酰氯(R'= C 2 H 5 C = C )仅在催化量的Pd [P(P( Ph)3 ] 4。
Phosphine-Catalyzed Direct δ-Carbon Addition of Alkynones to Electron-Deficient Carbonyl-Group-Containing Compounds: Preparation of Conjugated Dienes
作者:Yao-Liang Sun、Xiao-Nan Zhang、Yin Wei、Min Shi
DOI:10.1002/cctc.201600811
日期:2016.10.6
reaction site and trapped by electron‐deficient carbonyl‐group‐containing compounds upon phosphine catalysis, which provided three kinds of δ‐addition and isomerization products in moderate to excellent yields. Plausible mechanisms were proposed on the basis of deuterium‐labeling experiments. Thus, a novel strategy for phosphine‐catalyzed δ‐carbon addition of alkynones to electron‐deficient carbonyl groups
The present invention relates to dihydroisoxazoles that are useful for treating cellular proliferative diseases, for treating disorders associated with KSP kinesin activity, and for inhibiting KSP kinesin. The invention also relates to compositions which comprise these compounds, and methods of using them to treat cancer in mammals.