An unprecedented α‐allylation of amines was achieved by combining palladium catalysis and visible‐light photoredox catalysis. In this dual catalysis process, the catalytic generation of allyl radical from the corresponding π‐allylpalladium intermediate was achieved without additional metal reducing reagents (redox‐neutral). Various allylation products of amines were obtained in high yields through
METHOD FOR PRODUCING 1,4-DIPHENYL AZETIDINONE DERIVATIVES
申请人:LINDENSCHMIDT Andreas
公开号:US20070149776A1
公开(公告)日:2007-06-28
The present invention is directed to the preparation of novel compounds useful in the treatment of hyperlipidemia, arteriosclerosis, hypercholesterolemia, and other related metabolic disorders. More specifically, the present invention is a novel process for the preparation of 1,4-diphenylazetidinone derivatives from β-substituted amino amides which are protected in the presence of silylating agents and at least one cyclization catalyst whose structural formula is represented by one of the general formula:
Wherein the various R-groups are defined herein
PREPARATION PROCESS OF PERFLUOROALKYL COMPOUND WITH MONOHYDROPERFLUOROALKANE AS STARTING MATERIAL
申请人:KANTO DENKA KOGYO CO., LTD.
公开号:US20190169107A1
公开(公告)日:2019-06-06
A simple production process is provided of a perfluoroalkyl compound that uses monohydroperfluoroalkane as a starting material, the perfluoroalkyl compound being an important intermediate of organic electronic materials, medicine, agricultural chemicals, functional polymer materials and the like. With monohydroperfluoroalkane is reacted a base and then a carbonyl compound to produce an alcohol having a perfluoroalkyl group. For example, potassium hydroxide is made to interact with trifluoromethane, and a reaction with a carbonyl compound is induced to produce an alcohol having a trifluoromethyl group.