Competition between cyclisation and bisimine formation in the reaction of 1,3-diaminopropanes with aromatic aldehydes
作者:Julie M. Locke、Renate Griffith、Trevor D. Bailey、Robyn L. Crumbie
DOI:10.1016/j.tet.2009.10.060
日期:2009.12
Condensation of 1,3-diamines with aldehydes or ketones gives rise to two major products, the hexahydropyrimidine and the bisimine. Experimental studies of the reaction between a range of aromatic aldehydes and 1,3-diaminopropane or 1,3-diamino-2-propanol establish that the hexahydropyrimidine is favoured by the less nucleophilic amine and by the presence of electron withdrawing groups on the aryl ring
Selective Monoderivatization of Propane-1,3-diamine with Acid Chlorides: ?Hexahydropyrimidine method?vs. statistic methods
作者:Christian Jentgens、Stefan Bienz、Manfred Hesse
DOI:10.1002/hlca.19970800410
日期:1997.6.30
The selective N-monoderivatization of propane-1,3-diamine (5) with carbonyl and sulfonyl chlorides via2-phenylhexahydropyrimidine (6) was compared with the direct statisticmonoderivatization. It was found that, under optimized conditions, both methods are competitive to one another, depending, however, strongly on the reactivity of the eleclrophile used. The ‘hexahydropyrimidinemethod’ is more reliable
This document relates to compounds as well as methods and materials involved in modulating neurotransmitter reuptake. For example, compounds, methods for synthesizing compounds, and methods for inhibiting neurotransmitter reuptake are provided.