Process for the electrophilic substitution of thiazolidines...

Details Process for the electrophilic substitution of thiazolidines... Process for the electrophilic substitution of thiazolidines...

2006-07-25

2006-07-25

Saeed, Kamal A. (Department: 1626)

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C548S215000

Reexamination Certificate

active

07081537

ABSTRACT:
A process for preparing α-functionalized thiazolidines or oxazolidines, each of which are oxycarbonyl-functionalized in the 4-position, by adding a base to a reaction mixture comprising an oxycarbonyl-functionalized thiazolidine or oxazolidine and an electrophile at a temperature of greater than −40° C.

REFERENCES:
patent: 2003/0088105 (2003-05-01), Krich et al.
patent: WO 01/72702 (2001-10-01), None
patent: WO 01/72703 (2001-10-01), None
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Seebach et al., Helvetica Chimica Acta, 1987, vol. 70, pp. 1194-1216.
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