1539-57-7Relevant articles and documents
Enantioselective Alkylamination of Unactivated Alkenes under Copper Catalysis
Bai, Zibo,Zhang, Heng,Wang, Hao,Yu, Hanrui,Chen, Gong,He, Gang
supporting information, p. 1195 - 1202 (2021/02/05)
An enantioselective addition reaction of various alkyl groups to unactivated internal alkenes under Cu catalysis has been developed. The reaction uses amide-linked aminoquinoline as the directing group, 4-alkyl Hantzsch esters as the donor of alkyl radicals, and rarely used biaryl diphosphine oxide as a chiral ligand. β-lactams featuring two contiguous stereocenters at Cβ and the β substituent can be obtained in good yield with excellent enantioselectivity. Mechanistic studies indicate that a nucleophilic addition of the alkyl radical to CuII-coordinated alkene is the enantio-determining step.
USE OF COMPOSITIONS OBTAINED BY CALCINING PARTICULAR METAL-ACCUMULATING PLANTS FOR IMPLEMENTING CATALYTICAL REACTIONS
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Paragraph 0849-0850, (2016/01/25)
The use of metal-accumulating plants for implementing chemical reactions especially catalytical reactions.
Novel syntheses of heterocycles with N-(1-haloalkyl)azinium halides. Part 2. Preparation of N-unsubstituted 1,4-dihydropyridines
Vanden Eynde,D'Orazio,Mayence,Maquestiau,Anders
, p. 1263 - 1268 (2007/10/02)
N-(1-Chloroalkyl)pyridinium chlorides, prepared from thionyl chloride, pyridine, and aldehydes, readily react with enaminocarbonyl derivatives to yield 1,4-dihydropyridines under mild and neutral conditions.