Intermediates, process for their preparation, and their use for

Details Intermediates, process for their preparation, and their use for Intermediates, process for their preparation, and their use for

1990-12-03

1992-06-09

Hollrah, Glennon H.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

549357, 549369, 549374, 549378, 549429, 549453, 549455, 549221, C07D31710

Patent

active

051208644

ABSTRACT:
New intermediates and processes for the preparation of vitamins A and E, which are the acetals of 5,6-dihalo-3-methyl-3-hydroxyhexanal or of 6-halo-3-hydroxy-3-methyl-5-hexenal or 3-methyl-3-hydroxy-5-hexenal, as well as processes for making the intermediates. After dehydrohalogenation and dehydration these intermediates are condensed directly with .beta.-ionone or with 2-methyl-2-heptene-6-one to synthesize vitamins A and E respectively.

REFERENCES:
patent: 2816117 (1987-12-01), Cawley et al.

Affiliated with

Also associated with

Rating

Intermediates, process for their preparation, and their use for does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Intermediates, process for their preparation, and their use for , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Intermediates, process for their preparation, and their use for will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1805483