The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 02, 1978
Filed:
Feb. 23, 1977
Jean-Pierre Decor, Thurins, FR;
Rhone-Poulenc Industries, Paris, FR;
Abstract
.alpha.-Halogeno-acetals of ethylenically-unsaturated aldehydes of the formula: ##STR1## are disclosed, which are prepared by reacting a hypohalite of a saturated aliphatic tertiary alcohol with an ethylenically-unsaturated aldehyde of the formula: ##STR2## in which: R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5, which may be identical or different, represent hydrogen or straight or branched alkyl of from 1 to 6 carbon atoms especially methyl or ethyl, X represents halogen, especially chlorine or bromine, R.sub.6 represents straight or branched alkyl of from 1 to 6 carbon atoms especially methyl or ethyl; and n represents zero or 1. Such .alpha.-halogeno acetals may be used to introduce an ethylenically-unsaturated aldehyde unit into a monoene or polyene radical.