AMINE-FUNCTIONAL MONOMERS AND METHODS OF MAKING SAME
摘要:
Disclosed herein are addition-polymerizable monomer composition including an amine-derivatized alpha-methyl styrene (ADAMS) monomer according to structure (I) and/or an aminated conjugated aliphatic methylated polyene (ACAMP) monomer according to structure (II):
with k, R
1
, R
2
, R
3
, and R
4
defined herein. Difunctional monomers of these types with two polymerizable loci and/or two amine loci are also disclosed herein. Further disclosed herein are methods for making such compositions.
Photocyclisation of γ,δ- and δ, ε-unsaturated amines. Hydrogen transfer reactions via eight-membered cyclic transition states
作者:Hiromu Aoyama、Yoshiaki Arata、Yoshimori Omote
DOI:10.1039/c39850001381
日期:——
Photolysis 4-(N,N-dibenzylamino)-2-phenylbut-1-ene and 5-(N,N-dibenzylamino)-2-phenylpent-1-ene gave cyclisation products via 1,6- and 1,7-hydrogen shifts respectively.
A novel, highly selective palladium-catalyzed vinylation reaction for the direct synthesis of allylic amines from styrenes and aminals has been established. The utility of this method was also demonstrated by the rapid synthesis of cinnarizine from aldehydes, amines, and simple alkenes in one-pot manner. Mechanistic studies suggested that the reaction proceeds through a valuable cyclometalated Pd(II) complex generated by the oxidative addition of aminal to a Pd(0) species.
Photocyclization of 4-(dialkylamino)-2-aryl-1-butenes
Irradiation of 4-(dialkylamino)-2-aryl-1-butenes gave cyclization products, 3-methyl-3-arylpyrrolidines, in high yields. These styrylamines formed fluorescent intramolecular exciplexes, but studies based on Stern-Volmer quenching for the fluorescence and the photoreaction suggested that the emissive exciplexes did not participate in the photoreaction.