One-pot preparation of β-hydroxy esters catalysed by a bis(cyclopentadienyl)titanium(<scp>IV</scp>) dichloride–zinc system
作者:Yu Ding、Gang Zhao
DOI:10.1039/c39920000941
日期:——
The reaction of α-haloesters with carbonyl compounds catalysed by Cp2TiCl2(cat.)–Zn gives β-hydroxyesters.
Cp 2 TiCl 2(cat。)-Zn催化α-卤代酯与羰基化合物的反应,生成β-羟基酯。
Reformatsky and Blaise reactions in flow as a tool for drug discovery. One pot diversity oriented synthesis of valuable intermediates and heterocycles
作者:L. Huck、M. Berton、A. de la Hoz、A. Díaz-Ortiz、J. Alcázar
DOI:10.1039/c6gc02619b
日期:——
The application of Reformatsky and Blaise reactions for the preparation of a diverse set of valuable intermediates and heterocycles in a one-pot protocol is described. To achieve this goal, a...
Treatment of a mixture of α-halogeno-esters and carbonyl compounds with low-valent tantalum prepared readily from tantalum(V) chloride and activated zinc, afforded β-hydroxy-esters in moderate to good yields.
Carbon-13 magnetic resonance of hydroaromatics. II. Conformation of Tetralin and tetrahydroanthracene and their methyl derivatives
作者:Frederick G. Morin、W. James Horton、David M. Grant、Don K. Dalling、Ronald J. Pugmire
DOI:10.1021/ja00350a042
日期:1983.6
Carbon-13 chemical shift data have been acquired for 36 methylated tetralins and tetrahydroanthracenes. A least-squares regression analysis has been undertaken on the ring carbons of compounds of unequivocal conformation to determine methyl substituent parameters for the two distinct aliphatic positions and the results have been used to estimate the position of equilibrium of conformationally mobile