公开(公告)号：US3855266A

公开(公告)日：1974-12-17

申请号：US36939073

申请日：1973-06-12

Applicant: STAMICARBON

Inventor： BEEKHUIS G

IPC: C07C255/17 ,  C07C20060101 ,  C07C67/00 ,  C07C253/00 ,  C07C121/02

CPC classification number: C07C255/00

Abstract: A process for recovering gamma -cyanobutyraldehyde from the acid hydrolysis mixture obtained by the acid hydrolysis of Nsubstituted gamma -cyanobutyraldimine is disclosed, wherein the gamma -cyanobutyraldehyde is extracted from such acid hydrolysis mixture with methyl ethyl ketone, nitromethane, dichloromethane, chloroform or 1,2-dichloroethane. The extraction process of the present invention allows much lower amounts of solvents to be used than were used in previous prior art processes, and the gamma -cyanobutyraldehyde is readily separated from the solvent.

Abstract translation: 公开了通过N-取代的γ-氰基丁醛酰亚胺的酸水解获得的酸水解混合物中回收γ-氰基丁醛的方法，其中将γ-氰基丁醛从甲基乙基酮，硝基甲烷，二氯甲烷，氯仿或这些酸水解混合物中提取出来 1,2-二氯乙烷。

公开(公告)号：US3821274A

公开(公告)日：1974-06-28

申请号：US22461572

申请日：1972-02-08

Applicant: STAMICARBON

Inventor： BEEKHUIS G ,  KLEIN J

IPC: C07C121/02

CPC classification number: C07C255/00

Abstract: A process for preparing 2-( Beta -cyanoethyl)-N-substituted acetaldimines by the reaction of acrylonitrile and an Nsubstituted acetaldimine is disclosed, wherein the reaction is conducted in the presence of at least one compound which is an alkali metal oxide, an alkaline-earth metal oxide, an alkali metal hydroxide, an alkaline-earth metal hydroxide, an alkali metal salt or an alkaline-earth metal salt derived from an acid having a dissociation constant less than 10 5.