81536-08-5Relevant articles and documents
Old and New Alkaloids from Zanthoxylum arborescens
Grina, Jonas A.,Ratcliff, Matthew R.,Stermitz, Frank R.
, p. 2648 - 2651 (1982)
The new alkaloids (2S,5S)-2,5-dibenzyl-1,4-dimethylpiperazine, 8-hydroxy-4,7-dimethoxyfuranoquinoline, and 8-isopentenyloxy-4,7-dimethoxyfuranoquinoline were isolated from Zanthoxylum arborescens (Rutaceae).The β-D-glucopyranoside of hordenine (previously
Ir-Catalyzed Double Asymmetric Hydrogenation of 3,6-Dialkylidene-2,5-diketopiperazines for Enantioselective Synthesis of Cyclic Dipeptides
Ge, Yao,Han, Zhaobin,Wang, Zheng,Ding, Kuiling
, p. 8981 - 8988 (2019/06/13)
An Ir/spiro[4,4]-1,6-nonadiene-based phosphine-oxazoline ligand (SpinPHOX) complex-catalyzed double asymmetric hydrogenation of 3,6-dialkylidene-1,4-dimethylpiperazine-2,5-diones has been developed, providing efficient and practical access to a wide varie
Enantioselective Henry reaction catalyzed by C2-symmetric chiral diamine-copper(II) complex
Selvakumar, Sermadurai,Sivasankaran, Dhanasekaran,Singh, Vinod K.
supporting information; experimental part, p. 3156 - 3162 (2011/02/25)
A copper(II) complex of C2-symmetric diamine has been proved to be an efficient catalyst for the enantioselective Henry reaction between nitroalkanes and various aldehydes to provide β-hydroxy nitroalkanes in high yields (up to 97%), moderate diastereoselectivities (up to 71:29) and excellent enantiomeric excesses (up to 96%). The chiral nitroaldol adduct obtained has been further converted into chiral aziridine in few steps.