104096-26-6Relevant articles and documents
Biocatalytic Access to Piperazines from Diamines and Dicarbonyls
Borlinghaus, Niels,Gergel, Sebastian,Nestl, Bettina M.
, p. 3727 - 3732 (2018/04/14)
Given the widespread importance of piperazines as building blocks for the production of pharmaceuticals, an efficient and selective synthesis is highly desirable. Here we show the direct synthesis of piperazines from 1,2-dicarbonyl and 1,2-diamine substrates using the R-selective imine reductase from Myxococcus stipitatus as biocatalyst. Various N- and C-substituted piperazines with high activity and excellent enantioselectivity were obtained under mild reaction conditions reaching up to 8.1 g per liter.
A simple one-pot method for the mercuric oxide mediated synthesis of piperazines via oxidative diamination of olefins
Kour, Harpreet,Paul, Satya,Singh, Parvinder Pal,Gupta, Monika,Gupta, Rajive
, p. 761 - 764 (2013/02/25)
Mercuric oxide mediated one-pot synthesis of substituted piperazines via oxidative diamination of olefins with N-protected ethylene diamine has been reported. Among the various conditions tried, mercuric(II)oxide/tetrafluoroboric acid gave good to excellent yields of the desired products. A series of piperazines have been synthesized and characterized by NMR and mass spectroscopy methods.
