Process for producing...

C - Chemistry – Metallurgy – 07 – D

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C07D 211/58 (2006.01) C07D 211/60 (2006.01)

Patent

CA 2286914

The present invention provides a highly safe and easily operable process for producing 1-chlorocarbonyl-4- piperidinopiperidine or hydrochloride thereof in a high yield. Described specifically, the present invention relates to a process for producing 1-clorocarbonyl-4- piperidinopiperidine or hydrochloride thereof, which comprises reacting 4-piperidinopiperidine with a trialkylsilyl halide to obtain a 4-piperidinopiperidinyl trialkylsilyl, reacting it with a carbon dioxide gas to obtain a 4-piperidinopiperidinyl trialkylsilyl carbamate derivative, reacting the derivative with thionyl chloride or the like to obtain 1-chlorocarbonyl-4-piperidinopiperidine hydrochloride and optionally treating it with a strong base.

Cette invention concerne un procédé permettant de produire de grandes quantités de 1-chlorocarbonyl-4-pipéridinopipéridine, ou d'hydrochlorure de celle-ci, grâce à une opération simple et d'une grande sécurité. Ce procédé consiste à faire réagir de la 4-pipéridinopipéridine avec de l'halogénure de trialkylsilyle de manière à obtenir un 4-pipéridinopipéridinyltrialkylsilyle. On fait ensuite réagir ce composé avec du dioxyde de carbone de manière à obtenir un carbamate de 4-pipéridinopipéridinyltrialkylsilyle qui, après réaction avec du chlorure de thionyle, va produire de l'hydrochlorure de 1-chlorocarbonyl-4-pipéridinopipéridine. Ce composé peut le cas échéant être traité à l'aide d'une base forte.

LandOfFree

Say what you really think

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

Rating

Process for producing... does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

     

Profile ID: LFCA-PAI-O-1469221

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