Process for producing vitamin A or its carboxylic acid esters, a

Details Process for producing vitamin A or its carboxylic acid esters, a Process for producing vitamin A or its carboxylic acid esters, a

1985-12-03

1989-04-25

Lone, Werren B.

Organic compounds -- part of the class 532-570 series

Organic compounds

Sulfur containing

549420, 549423, 560260, 560255, 568824, C07C14700

Patent

active

048250066

ABSTRACT:
A process for producing vitamin A represented by the formula ##STR1## which comprises treating a compound represented by the formula ##STR2## wherein R.sup.1 represents an aryl group which may be substituted, R.sup.21 and R.sup.22 each represents a hydrogen atom or a lower alkanoyl group, R.sup.3 represents an acetal-type protective group for a hydroxyl group, and X represents a halogen atom, with a base; and novel intermediate compounds useful for the above process.

REFERENCES:
patent: 3848000 (1974-12-01), Chabardes et al.
patent: 3979471 (1976-09-01), Julia
patent: 4175205 (1979-11-01), Decor
Mandai, T. et al, "Novel Synthesis of Acetylenes and Polyenes via Desulfonylation", J. Amer. Chem. Soc., 106, pp. 3670-3672, Jun. 13, 1984.

Affiliated with

Also associated with

Rating

Process for producing vitamin A or its carboxylic acid esters, a 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 vitamin A or its carboxylic acid esters, a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for producing vitamin A or its carboxylic acid esters, a will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1197013