ZIRCONIUM ASSISTED REGIOSELECTIVE ACYLATION OF DIENES WITH SATURATED OR UNSATURATED ESTERS TO LEAD TO β,γ-UNSATURATED CARBONYL COMPOUNDS
作者:Munetaka Akita、Hajime Yasuda、Akira Nakamura
DOI:10.1246/cl.1983.217
日期:1983.2.5
Regioselective formylation or acylation of isoprene at the C1 atom was realized by reaction of Cp2Zr(isoprene) with saturated esters followed by protonolysis with acetic acid. The corresponding reaction with various alkyl acrylates resulted in the formation of allyl vinyl ketones.
作者:Alexander M. Moiseenkov、Boris A. Czeskis、Tatjana Yu. Rudashevskaya、Olga A. Nesmeyanova、Alexei V. Semenovsky
DOI:10.1016/0040-4039(81)80173-6
日期:1981.1
An acid catalyzed rearrangement of vinylcyclopropenyl-carbinols into vinylallenic alcohols and divinyl ketones (of the monoterpene series) is discussed.
Catalytic Performance of Microporous and Hierarchical Zeolites in Condensation of Acetone with Ammonia
作者:N. G. Grigor’eva、N. A. Filippova、S. V. Bubennov、B. I. Kutepov
DOI:10.1134/s0965544122070131
日期:2022.8
Abstract The study investigates the catalyticperformance of microporous (H–Y) and micro–meso–macroporous (H–Yh, Fe2O3/H–Yh, PbO/H–Yh, and La–H–Yh ) FAU-type zeolites in the condensation of acetone with ammonia. In the presence of H–Yh, Fe2O3/H–Yh, and La–H–Yh, 2,4,6-trimethylpyridine was synthesized with selectivity of 54%, 58%, and 24%, respectively. In the presence of H–Y and PbO/H–Yh, the predominant