50871-95-9Relevant academic research and scientific papers
ALKYLATION OF WEAK BASES BY BROMIDES OF THE PROPARGYL TYPE UNDER CONDITIONS OF INTERPHASE CATALYSIS
Mostamandi, A.,Remizova, L.A.,Fomenkova, T.N.,Favorskaya, I.A.
, p. 848 - 850 (2007/10/02)
The alkylation of weak bases with pKa 1 (diphenylamine and N,N'-diphenylurea) was realized with 1-bromo-2-pentyne and 1-bromo-2-propyne under conditions of interphase catalysis.It was shown that alkylation of N,N'-diphenylurea with 1-bromo-2-pentyne leads to the formation of a product with linear structure, i.e., N,N'-diphenyl-N-2-pentynylurea, while alkylation with the bromide having a terminal triple bond leads to the formation of only the cyclic products 1,3-diphenyl-4-methylene-2-imidazolidinone and 1,3-diphenyl-4-methyl-2-imidazolinone.
