公开(公告)号：US4351972A

公开(公告)日：1982-09-28

申请号：US296328

申请日：1981-08-26

申请人： Hans K. Kubbeler ,  Heinz Erpenbach ,  Klaus Gehrmann ,  Klaus Schmitz

发明人： Hans K. Kubbeler ,  Heinz Erpenbach ,  Klaus Gehrmann ,  Klaus Schmitz

IPC分类号： C07C17/00 ,  B01J31/00 ,  C07B61/00 ,  C07C17/093 ,  C07C17/363 ,  C07C19/07 ,  C07C51/00 ,  C07C51/09 ,  C07C67/00 ,  C07C19/02

CPC分类号： C07C17/093

摘要： The invention relates to the production of anhydrous alkyl iodides. To this end, carboxylic acid alkyl esters of the formula R.sup.1 COOR.sup.2, in which R.sup.1 stands for hydrogen or an alkyl or aryl radical having from 1 to 8 carbon atoms and R.sup.2 stands for an alkyl group having from 1 to 4 carbon atoms, are reacted with iodine and hydrogen and optionally with carbon monoxide in the presence of compounds of noble metals comprised of rhodium, iridium, palladium or ruthenium as catalyst, and of a heterocyclic aromatic compound, in which at least one hetero atom is a quaternary nitrogen atom, or of a quaternary organophosphorus compound as a promoter, and optionally also in the presence of a carboxylic acid having from 1 to 8 carbon atoms and/or its anhydrides. The reaction is effected under practically anhydrous conditions at temperatures of from 350 to 420 K. and under a total pressure of up to 30 bars.

摘要翻译： 本发明涉及无水烷基碘化物的生产。 为此，式R1COOR2的羧酸烷基酯（其中R1代表氢或具有1至8个碳原子的烷基或芳基，R2代表具有1至4个碳原子的烷基）与 碘和氢，以及任选地与一氧化碳在由铑，铱，钯或钌作为催化剂组成的贵金属的化合物和杂环芳族化合物存在下，其中至少一个杂原子是季氮原子，或 作为促进剂的季有机磷化合物，以及任选地还可以在具有1至8个碳原子的羧酸和/或其酸酐存在下进行。 反应在几乎无水条件下在350至420K的温度下进行，总压力高达30巴。