METHOD FOR ENANTIOSELECTIVE SYNTHESIS OF (R)-DIETHYL(2-NITRO-1-PHENYLETHYL) MALONATE IN PRESENCE OF NICKEL COMPLEX Russian patent published in 2013 - IPC C07C205/40 C07C201/12 B01J23/755 C07F15/04 

Abstract RU 2488576 C2

FIELD: chemistry.

SUBSTANCE: invention relates to a method for enantioselective synthesis of (R)-diethyl(2-nitro-1-phenylethyl)malonate of formula

by enantioselective bonding of diethyl malonate to trans-β-nitrostyrene in the presence of a chiral catalyst. The catalyst is a nickel (II) complex of formula II with (S,S)-N,N'-di(2,4,6-trimethylbenzyl)cyclohexane-1,2-diamine

.

EFFECT: invention enables to obtain a compound of formula I with enantiomeric excess of the (R)-isomer and also simplify the process.

4 cl, 6 ex

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RU 2 488 576 C2

Authors

Reznikov Aleksandr Nikolaevich

Klimochkin Jurij Nikolaevich

Dates

2013-07-27Published

2011-11-08Filed