Process for preparing di-n-propylacetonitrile
Номер патента: CA1316166C
Опубликовано: 13-04-1993
Автор(ы): Alain Heymes, Andre Bousquet, Christian Forquy, Michel Bouisset
Принадлежит: SANOFI SA
Опубликовано: 13-04-1993
Автор(ы): Alain Heymes, Andre Bousquet, Christian Forquy, Michel Bouisset
Принадлежит: SANOFI SA
Реферат: ABSTRACT OF THE DISCLOSURE: The invention relates to a process for the preparation of di-n-propylacetonitrile, according to a process consisting in heating N-(1-propyl-n-butyl)formamide to a temperature of between 350°C and 550°C and in the absence of oxygen, in the presence of a catalyst consisting of a silica impregnated with 0.1 to 10% by weight of alkali metal cations. The invention also relates to a catalyst consisting of a silica impregnated with 0.1 to 10% by weight of alkali metal cations. The process is useful to overcome drawbacks usually noted with prior art processes concerning ethylenic by-products.
Process for preparing di-n-propylacetonitrile
Номер патента: US5075486A. Автор: Michel Bouisset,Andre Bousquet,Alain Heymes,Christian Forqlly. Владелец: SANOFI SA. Дата публикации: 1991-12-24.