Process for the preparation of 1-bromoethyl hydrocarbonyl carbon

Details Process for the preparation of 1-bromoethyl hydrocarbonyl carbon Process for the preparation of 1-bromoethyl hydrocarbonyl carbon

1987-03-23

1989-02-28

Shippen, Michael L.

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

Organic compounds

Carbonate esters

C07C 6996

Patent

active

048087459

ABSTRACT:
The invention relates to a process for the preparation of 1-bromoethyl hydrocarbonyl carbonates, characterized in that anhydrous hydrobromic acid is reacted with a vinyl hydrocarbonyl carbonate of formula ##STR1## in which R denotes a saturated, substituted or unsubstituted C.sub.1 -C.sub.12 aliphatic radical or C.sub.5 -C.sub.24 alicyclic radical, or a substituted or unsubstituted aromatic radical, at a temperature between 10.degree. and 100.degree. C.
The invention also relates to the new 1-bromoethyl hydrocarbonyl carbonates of formula: ##STR2## These carbonates are particularly sought after for introducing a carbonate group into a molecule.

REFERENCES:
patent: 3152168 (1964-10-01), Fincke
patent: 3218346 (1965-11-01), Baker
patent: 4606865 (1986-08-01), Palmer
"Studies on Orally Active Cephalosporin Esters", The Journal of Antibiotics, Mar. 1987, pp. 370-377, by Koichi Fujimoto, et al.

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