Synthesis of cyclopentenones

Details Synthesis of cyclopentenones Synthesis of cyclopentenones

2007-10-09

2007-10-09

Witherspoon, Sikarl A. (Department: 1621)

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

Organic compounds

Oxygen containing

C568S345000

Reexamination Certificate

active

11737510

ABSTRACT:
The invention relates to a process for the preparation, in a single step, of substituted 2-cyclopenten-1-ones by reacting a substituted enone with an aldehyde in the presence of a catalytic system. The catalytic system consists of a metal complex, such as a Ti(Cl)3(alkoxy), and a co-ingredient, such as a carboxylic acid anhydride or an anhydrous salt.

REFERENCES:
patent: 6686498 (2004-02-01), Jacoby
patent: 6838575 (2005-01-01), Jacoby
patent: 7091151 (2006-08-01), Jacoby
Tsuyoshi Yuki et al., “Direct Synthesis of Polysubstituted Cyclopentenones from Ketones and Aldehydes Catalyzed by Zirconium Compounds”, Journal of Organic Chemistry, Vo91. 58, No. 16, pp. 4497-4499 (1993).

Affiliated with

Also associated with

Rating

Synthesis of cyclopentenones does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Synthesis of cyclopentenones, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Synthesis of cyclopentenones will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3837051