Mercaptoalkyl acetoacetates

Details Mercaptoalkyl acetoacetates Mercaptoalkyl acetoacetates

1988-10-31

1990-10-02

Garner, Vivian

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

Organic compounds

Carboxylic acid esters

526216, 526224, C07C14920

Patent

active

049609246

ABSTRACT:
This invention relates to mercaptoalkyl acetoacetates and a process for preparing mercaptoalkyl acetoacetates. The process embraces the reaction of TKD (a diketene-acetone adduct) with hydroxy-functional mercaptans. Preferred is the reaction of TKD with 2-mercaptoethanol to yield mercaptoethyl acetoacetate. Mercaptoethyl acetoacetate is an effective chain transfer agent in free radical polymerization reactions with the benefit of introducing reactive acetoacetate functionally into the formed polymer.

REFERENCES:
patent: 3542855 (1970-11-01), Maschel
patent: 3689568 (1972-09-01), Eletts et al.
L. W. C. Miles and L. N. Owen, J. Chemical Society, 817-826 (1952).
M. F. Carroll and A. R. Bader, J. Am. Chem. Soc., vol. 75, 5400-5402 (1953).
R. J. Clemens and J. A. Hyatt, J. Organic Chem., vol. 50, 2431-2435 (1985).

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