Preparation of methylene-bis-phenylcarbamic acid esters and poly

Details Preparation of methylene-bis-phenylcarbamic acid esters and poly Preparation of methylene-bis-phenylcarbamic acid esters and poly

1981-03-30

1982-05-04

Breitenstein, G. T.

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

Organic compounds

Carboxylic acid esters

C07C12507

Patent

active

043283543

ABSTRACT:
Methylene-bis-phenylcarbamic acid esters and polymethylene-polyphenylcarbamic acid esters are prepared by reacting N-phenylcarbamic acid esters with formaldehyde, formaldehyde derivatives or formaldehyde donors in the presence of carboxylic acids having a pK.sub.a of less than 4.

REFERENCES:
patent: 2946768 (1960-07-01), Klauke et al.
patent: 4146727 (1979-03-01), Shawl et al.
patent: 4162362 (1979-07-01), Shawl
patent: 4163019 (1979-07-01), Mango
patent: 4230877 (1980-10-01), Shawl et al.
patent: 4243815 (1981-01-01), Merger et al.

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