Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acid esters
Patent
1977-02-23
1978-08-29
Thomas, Jr., James O.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acid esters
260607AR, 260607AL, 260609F, C07C14706
Patent
active
041105389
ABSTRACT:
Acetal sulphones useful as intermediates in the preparation of vitamin A and other terpene compounds are made by reacting a sulphone of the formula: ##STR1## with an .omega.-halogeno-acetal of an ethylenically unsaturated aldehyde of the formula: ##STR2## in which m and n each represent zero or 1 and are such that m+n=1, 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 radical of 1 to 6 carbon atoms, R.sub.6 represents straight or branched alkyl of 1 to 6 carbon atoms, R represents straight or branched alkyl of 1 to 6 carbon atoms or arylalkyl containing a straight or branched alkyl of from 1 to 6 carbon atoms or aryl, unsubstituted or substituted by alkyl, alkoxy, alkylthio, alkoxycarbonyl, hydroxyl or halogen, and R' represents hydrogen or, if m is zero, straight or branched alkyl of 1 to 6 carbon atoms.
REFERENCES:
patent: 3781313 (1973-12-01), Julia
patent: 3803252 (1974-04-01), Chabardes
patent: 3848000 (1974-11-01), Chabardes
patent: 3850991 (1974-11-01), Chabardes
patent: 3865878 (1975-02-01), Chabardes
patent: 3906967 (1976-06-01), Olson
Rhone-Poulenc Industries
Shippen Michael
Thomas, Jr. James O.
LandOfFree
Process for the preparation of acetal sulphones 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 the preparation of acetal sulphones, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of acetal sulphones will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1634415