Russian Chemical Bulletin, volume 64, issue 7, pages 1595-1601
Palladium-catalyzed enantioselective allylation in the presence of phosphoramidites derived from (S a)-3-SiMe3-BINOL, (R,S)-semi-TADDOL, and (R,R)-TADDOL
K.N Gavrilov
1
,
S V Zheglov
1
,
I M Novikov
1
,
I V Chuchelkin
1
,
V K Gavrilov
1
,
V V Lugovsky
1
,
Publication type: Journal Article
Publication date: 2015-07-01
Journal:
Russian Chemical Bulletin
scimago Q3
SJR: 0.292
CiteScore: 2.7
Impact factor: 1.7
ISSN: 10665285, 15739171
General Chemistry
Abstract
Novel P*- and P-monodentate phosphoramidites of a 1,3,2-dioxaphosphepine series were derived from (S a)-3-trimethylsilyl-BINOL, (R,S)-semi-TADDOL, and (R,R)-TADDOL. Catalytic performance of the synthesized compounds were examined in the Pd-catalyzed asymmetric allylic substitution of (E)-1,3-diphenylallyl acetate: the reaction with dimethyl malonate gave up to 92% ee. The effects of additives of 5,10,15,20-tetraphenylporphyrin and its metal complexes on conversion and enantioselectivity were studied.
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