A process for the preparation of...

C - Chemistry – Metallurgy – 07 – C

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C07C 211/36 (2006.01) C07C 209/48 (2006.01) C07C 209/62 (2006.01) C07C 209/68 (2006.01) C07C 231/10 (2006.01) C07C 233/03 (2006.01) C07C 233/41 (2006.01)

Patent

CA 2232503

The present invention relates to a process for the presentation of 1-amino-1-methyl-3(4)-aminomethyl cyclohexane (AMCA) by a) catalytically hydrogenating 1-formamido-1-methyl-3(4)-cyano cyclohexane (FMC) in a first reaction stage to form 1-formamido-1- methyl-3(4)-aminomethyl cyclohexane (FMA), 1-amino-1-methyl- 3(4)-formamidomethyl cyclohexane (AMF), 1-formamido-1-methyl- 3(4)-formamidomethyl cyclohexane (FMF) and/or AMCA, and b) reacting FMA, AMF and/or FMF in a second reaction stage with an alkaline compound to from AMCA and a formic acid derivative, and c) separating the reaction mixture obtained in step b) into components by fractional distillation and/or by crystallization and filtration. The present invention is also relates to carrying the hydrogenation reaction of step a) in the presence of a formulating agent to form 1-formamido-1-methyl-3(4)-formamidomethyl cyclohexane (FMF). Finally, the present invention relates to the intermediate products 1-formamido-1-methyl-3(4)-aminomethyl cyclohexane (FMA) and 1-formamido-1-methyl-3(4)-formamidomethyl cyclohexane (FMF).

L'invention porte sur une méthode pour l'obtention de 1-amino-1-méthyl-3(4)-aminométhylcyclohexane (AMCA) par : a) hydrogénation catalytique du 1-formamido-1-méthyl-3(4)-cyanocyclohexane (FMC) dans un premier stade pour former le 1-formamido-1-méthyl-3(4)-aminométhylcyclohexane (FMA), le 1-amino-1-méthyl- 3(4)-formamidométhylcyclohexane (AMF), le 1-formamido-1-méthyl- 3(4)-formamidométhylcyclohexane (FMF) et (ou) l'AMCA; b) réaction du FMA, de l'AMF et (ou) du FMF dans un deuxième stade, avec un composé alcalin pour former l'AMCA et un dérivé d'acide formique; c) fractionnement du mélange réactionnel obtenu en b en divers constituants par distillation fractionnée et (ou) par cristallisation et filtration. L'invention porte également sur l'hydrogénation en a, qui est effectuée en présence d'un agent en formant le 1-formamido-1-méthyl-3(4)-formamidométhylcyclohexane (FMF). Enfin, l'invention porte sur les produits intermédiaires 1-formamido-1-méthyl-3(4)-aminométhylcyclohexane (FMA) et 1-formamido-1-méthyl-3(4)-formamidométhylcyclohexane (FMF).

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

A process for the preparation of... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with A process for the preparation of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A process for the preparation of... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1643984

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.