Process for preparing 4-substituted azetidinones

Details Process for preparing 4-substituted azetidinones Process for preparing 4-substituted azetidinones

1989-09-20

1991-02-12

Berch, Mark L.

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

Organic compounds

Unsubstituted hydrocarbyl chain between the ring and the -c-...

204 59R, 540200, 540362, 540363, 540364, C07D205095, C07D205085, C07B 3704, C07B 3706

Patent

active

049925458

ABSTRACT:
A process for preparing 3-4-cis-.beta.,.beta.-(4)-substituted and 3-4-trans,.beta.,.alpha.- (4)-substituted azetidinones is provided. Also provided are novel 4,4-disubstituted azetidinones.

REFERENCES:
patent: 4230619 (1980-10-01), Foglio
patent: 4421686 (1983-12-01), Mueller
patent: 4559406 (1985-12-01), Lempert
patent: 4588484 (1986-05-01), Justice et al.
patent: 4652651 (1987-03-01), Furlenmeier
patent: 4665171 (1987-05-01), Evans et al.
patent: 4683303 (1987-07-01), Pfaendler
patent: 4771135 (1988-09-01), Blaszczak
Hans Rudolf Pfaendler et al., Heterocycles, vol. 23, No. 2, 1985, pp. 265-272.
Dabby et al., Battersea Polytechnic, London, S.W.11., 1952, pp. 4881-4882.
Bodurow et al., Tetrahedron Letters, vol. 30, No. 18, pp. 2321-2324, 1989.
Tetrahedron Letters, Posner et al., No. 12, pp. 935-938, 1973.
J. Org. Chem., Posner et al., vol. 38, No. 16, 1973 pp. 2747-2756.
J. Am. Chem. Soc., 79, 5279 (1957), N. J. Leonard and F. R. Hauck.

Affiliated with

Also associated with

Rating

Process for preparing 4-substituted azetidinones 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 preparing 4-substituted azetidinones, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparing 4-substituted azetidinones will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-21487