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。
Synthesis of α-allenic aldehydes and allenyl trimethylsilyl ketones via (trimethylsilyloxy)butatrienes
作者:R.G. Visser、L. Brandsma、H.J.T. Bos
DOI:10.1016/s0040-4039(01)90563-5
日期:1981.1
EATON, PH. E.;SRIKRISHNA, A.;UGGERI, F., J. ORG. CHEM., 1984, 49, N 10, 1728-1732