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1.发明公开RACEMIZATION OF OPTICALLY ACTIVE COMPOUNDS HAVING A BROMINE SUBSTITUTED CHIRAL CARBON ATOM 失效具有溴取代的二氧化碳原子的光学活性化合物的研究
公开(公告)号：EP0216196A3
公开(公告)日：1988-09-21
申请号：EP86112008
申请日：1986-08-29
Applicant: STAUFFER CHEMICAL COMPANY
Inventor： DAHOD, SAMUN K.
IPC: C07C51/353 , C07B31/00 , C07B55/00 , C07C51/00 , C07C53/19 , C07C67/00 , C07C51/487
CPC classification number: C07B55/00
Abstract: Optically active compounds having a chlorine atom attached to the chiral carbon atom such as 2-bromoaliphatic acids can be racemized without by-product formation by heat ing an acidified solution of the organic acid at a temperature sufficient to accomplish racemization, the solution being sub stantially devoid of ionized halogen other than bromine ions. The preferred acidifying agent is hydrobromic acid. The use of hydrochloric acid causes extensive by-product formation.
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