Process for the direct conversion of lactones into...

Details Process for the direct conversion of lactones into... Process for the direct conversion of lactones into...

2006-09-26

2006-09-26

Witherspoon, Sikarl A. (Department: 1621)

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

Organic compounds

Oxygen containing

C568S397000, C568S446000, C568S484000

Reexamination Certificate

active

07112699

ABSTRACT:
The present invention refers to a process for the preparation of unsaturated ketones or aldehydes by pyrolysis of a lactone, in the presence of a reducing agent such as molecular hydrogen or a carboxylic acid, and in the presence of a catalyst, optionally supported, comprising at least one metal selected from the group consisting of Y, Ti, Cd, Mn, Zn, Sc and Zr.

REFERENCES:
patent: 2053845 (1936-09-01), Schmidt et al.
patent: 2612524 (1952-09-01), Zettlemoyer et al.
patent: 2739158 (1956-03-01), Caldwell
patent: 4950799 (1990-08-01), Hargis
patent: 0 539 274 (1996-04-01), None
Snider et al. A New Route to Funtionalized trans-Hydrindenones. Journal of the American Chemical Society, 1983, vol. 105, p. 2364-2368.
Johnston et al. Samarium(II)-Mediated 4-exo trig Ketyl-Olefin Cyclisation of Unsaturated Aldehydes. A General, Stereoselective Synthesis of Functionalised Cyclobutanols.□□Tetrahedron Letters, 1999, vol. 40, p. 4913-4916.
Kim et al. Ate Complex from Diisobutylaluminum Hydride and n-Butyllithium as a Powerful and Selective Reducing Agent fro the Reduction of Selected Organic Compounds Containing Various Fucntion Groups. Journal of Organic Chemistry, 1984, 49, p. 1717-1724.
Barry B. Snider et al., “A New Route To Functionalizedtrans-Hydrindenones”, Journal. American Chemical Society, vol. 105, No. 8, pp. 2364-2368 (1983).

Affiliated with

Also associated with

Rating

Process for the direct conversion of lactones into... 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 direct conversion of lactones into..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the direct conversion of lactones into... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3527840