Process for producing hinokitiol

C - Chemistry – Metallurgy – 07 – C

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C07C 45/64 (2006.01) C07C 45/42 (2006.01) C07C 45/69 (2006.01) C07C 49/717 (2006.01)

Patent

CA 2326536

A process for producing hinokitiol which comprises obtaining 1- isopropylcyclopentadiene from cyclopentadiene and an isopropylating agent represented by the general formula R-X (wherein R represents isopropyl; and X represents halogeno, etc.) (the step 1); reacting the obtained product with a dihaloketene to give a ketene-adduct (the step 2); and then decomposing this ketene-adduct (the step 3); wherein the above step 1 involves the following three steps: (a) the step of preparing a cyclopentadienyl metal; (b) the step of isopropylating the cyclopentadienyl metal in an aprotic polar solvent to give isopropylcyclopentadiene; and (c) the step of isomerizing 5- isopropylcyclopentadiene contained in the product selectively into 1- isopropylcyclopentadiene under heating.

Un procédé de production d'hinokitiol consiste à produire du 1-isopropylcyclopentadiène à partir de cyclopentadiène et d'un agent d'isopropylation représenté par la formule R-X (dans laquelle R représente isopropyle; et X représente halogéno, etc.) (étape 1); à faire réagir le produit obtenu avec un dihalocétène pour produire un adduit-cétène (étape 2); et à décomposer ensuite cet adduit-cétène (étape 3); l'étape 1 précédemment mentionnée comportant trois sous-étapes telles que: a) la préparation d'un métal cyclopentadiényle; b) l'isopropylation du métal cyclopentadiényle dans un solvant polaire aprotique pour produire de l'isopropylcyclopentadiène; et c) l'isomérisation sélective par chauffage du 5-isopropylcyclopentadiène contenu dans le produit sous forme de 1-isopropylcyclopentadiène.

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

Rate now

     

Profile ID: LFCA-PAI-O-1702514

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