申请人:Grigg, Ronald Ernest
公开号:EP0034480A2
公开(公告)日:1981-08-26
A process for preparing a N-alkylamine or N, N-dialkylamine, which comprises reacting a primary or secondary amine with a primary or secondary alcohol in the presence of a catalyst selected from iridium, rhodium, ruthenium, osmium, platinum, palladium and rhenium, present either as the metal or a salt or complex thereof. The catalyst is preferably a complex such as RhH(PPh3)4. The process can be used to cause cyclisation, including internal cyclisation so that, by way of example, N-methyl-pyrrolidine may be prepared from (1) pyrrolidine and methanol; (2) 1,4-butanediol and methylamine; and (3) 4-methylamino-1-butanol.
一种制备 N-烷基胺或 N,N-二烷基胺的工艺,包括在选自铱、铑、钌、锇、铂、钯和铼的催化剂(以金属或其盐或络合物形式存在)存在下,使伯胺或仲胺与伯醇或仲醇反应。催化剂最好是络合物,如 RhH(PPh3)4。该工艺可用于环化,包括内部环化,例如,可从 (1) 吡咯烷和甲醇;(2) 1,4-丁二醇和甲胺;以及 (3) 4-甲基氨基-1-丁醇制备 N-甲基吡咯烷。