Process for the preparation of trimethoprim and novel intermediates for use therein
申请人:Farmos-Yhtyma Oy
公开号:EP0067593A1
公开(公告)日:1982-12-22
Trimethoprim, i.e. 5-[(3,4,5-trimethoxyphenyl) methyl]-2,4-pyrimidinediamine of the formula
is advantageously prepared by reacting two moles of 3,4,5-trimethoxybenzaldehyde with 1 mol of 3,3'-(phenylenedi-iminoldipropanenitrile in the presence of an alkaline condensing agent to form a condensation product of formula:
which is then reacted with guanidine to give the compound of formula (I).
Cupric Acetate Catalyzed Monocyanoethylation of Aromatic Amines
作者:S. ALLEN HEININGER
DOI:10.1021/jo01361a023
日期:1957.10
KOSKENNISKA, L. A.;MANNINEN, K. J.
作者:KOSKENNISKA, L. A.、MANNINEN, K. J.
DOI:——
日期:——
VERFAHREN ZUR HERSTELLUNG VON POLYAMINEN AUSGEHEND VON DINITRILEN UND/ODER AMINONITRILEN
申请人:BASF SE
公开号:EP3515898A1
公开(公告)日:2019-07-31
METHOD FOR THE PREPARATION OF POLYAMINES FROM DINITRILES AND/OR AMINO NITRILES
申请人:BASF SE
公开号:US20190218341A1
公开(公告)日:2019-07-18
The present invention relates to a process for one-stage preparation of polyamines by reacting compounds comprising at least two nitrile groups (dinitrile) or at least one nitrile group and one amino group (amino nitrile) with hydrogen in the presence of heterogeneous transition metal catalysts.