Catalytic carbonylation of three and four membered heterocycles

Details Catalytic carbonylation of three and four membered heterocycles Catalytic carbonylation of three and four membered heterocycles

2005-02-08

2005-02-08

Tsang, Cecilia J. (Department: 1625)

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C548S952000, C548S953000, C548S959000, C548S965000, C556S027000, C556S045000, C556S057000, C556S076000, C556S182000, C549S088000, C549S090000, C549S510000, C549S512000, C502S161000

Reexamination Certificate

active

06852865

ABSTRACT:
Epoxides, aziridines, thiiranes, oxetanes, lactones, lactams and analogous compounds are reacted with carbon monoxide in the presence of a catalytically effective amount of catalyst having the general formula [Lewis acid]z+{[QM(CO)x]w−}ywhere Q is any ligand and need not be present, M is a transition metal selected from the group consisting of Groups 4, 5, 6, 7, 8, 9 and 10 of the periodic table of elements, z is the valence of the Lewis acid and ranges from 1 to 6, w is the charge of the metal carbonyl and ranges from 1 to 4 and y is a number such that w times y equals z, and x is a number such as to provide a stable anionic metal carbonyl for {[QM(CO)x]w−}yand ranges from 1 to 9 and typically from 1 to 4.

REFERENCES:
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patent: WO 03011941 (2003-02-01), None
Ando et al, Stereochemistry of Vicinal Cyanohydrin Reduction-Elimination, Jol. Ameri. Chem. Soc. vol. 100 No. 11 pp 3615-361.*
Koda-Foldes, Current Organic Chemistry (2002), vol. 6 No. 12 pp. 1097-1119, “Synthetic applications of palladium catlysed carbonylation of organic halides”.*
Calo et al, Journal of Organometallic Chemistry, vol. 645, Iss. 1-2, pp 152-157, (Feb. 5, 2002).*
Mori, Y., et al, Bulletin of the Chemical Society of Japan 42, 777-779 (1969).

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