Methoxymethyl p-toluenesulfonate

Details Methoxymethyl p-toluenesulfonate Methoxymethyl p-toluenesulfonate

1979-02-28

1980-08-26

Chan, Nicky

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2602391, 2602393A, C07C14368, C07D49908

Patent

active

042194954

ABSTRACT:
A new esterifying agent, i.e. methoxymethyl tosylate, is provided for use in preparing methoxymethyl esters of organic carboxylic acids. The new esterifying agent is found to be particularly advantageous in the esterification of penicillin 3-carboxyl groups or cephalosporin 4-carboxyl groups to the methoxymethyl ester group.

REFERENCES:
patent: 3737447 (1973-06-01), Mazur et al.
patent: 3843639 (1974-10-01), Sapino, Jr. et al.
patent: 3996236 (1976-12-01), Sleezer et al.
patent: 4125716 (1978-11-01), Crast, Jr. et al.
Karger et al., JACS, 90, 3878 (1968).
Karger et al., JACS, 91, 5663 (1969).
Yardley et al., Synthesis, Apr. 1976, p. 244.
Fuji et al., Synthesis, Apr. 1975, p. 276.
Federal Register, 39, 1910.93h (Jan. 29, 1974).

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