39617-05-5Relevant articles and documents
THE FIRST 4-DIALKYLAMINO-1,2-DIHYDROPYRIDINE DERIVATIVES: SYNTHESIS AND BASIC REACTIONS
Bader, Hubert,Reissig, Hans-Ulrich
, p. 835 - 838 (1986)
The first two 4-dialkylamino-1,2-dihydropyridine derivatives 4a and 4b are prepared in good yield by addition of n-butyllithium or t-butyllithium to 4-dimethylaminopyridine 1 followed by quench with diethylcarbonate.Compound 4a can be hydrolyzed under mild conditions providing 4-dihydropyridone 5, an interesting acceptor building block.On the other hand reaction of 4a with dimethyl acetylene dicarboxylate gives benzene derivative 7 via a cycloaddition-cycloreversion path.
1,3-Bis(dialkylamino)-1,3-butadiene aus 1-Methylvinamidiniumsalzen
Gompper, Rudolf,Heinemann, Ulrich
, p. 207 - 208 (2007/10/02)
-
