Asinger et al., Monatshefte fur Chemie, 1957, vol. 88, p. 464,472
作者:Asinger et al.
DOI:——
日期:——
US3931191A
申请人:——
公开号:US3931191A
公开(公告)日:1976-01-06
US4145545A
申请人:——
公开号:US4145545A
公开(公告)日:1979-03-20
Conversion of tetrahydropyrimidines to pyridines
申请人:Petrolite Corporation
公开号:US03931191A1
公开(公告)日:1976-01-06
A process of converting 2,3,4,5-tetrahydropyrimidines containing at least 1 hydrogen in the 2-position and at least one methylene group in the 4-position to corresponding pyridines which comprises heating said tetrahydropyrimidines to a temperature sufficiently high to remove ammonia and hydrogen so as to form said pyridines.