Method of preparation of oxalic acid esters and amides

Details Method of preparation of oxalic acid esters and amides Method of preparation of oxalic acid esters and amides

1989-04-21

1991-01-01

Lone, Werren B.

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

Organic compounds

Chalcogen in the nitrogen containing substituent

544 63, 544106, 544382, 546247, 548245, 558418, 560190, 560193, 560196, 564160, C07D27912, C07D26530, C07C 6720, C07C23108

Patent

active

049819631

ABSTRACT:
A new process is described for the preparation of oxalic acid esters and amides of general formula (I) ##STR1## wherein Z designates an --OR or --NR.sup.1 R.sup.2 group, wherein R represents substituted or unsubstituted alkyl, alkenyl, cycloalkyl, aryl, or aryl-alkyl, R.sup.1 is hydrogen or substituted or unsubstituted alkyl, alkenyl, cycloalkyl, aryl, or aryl-alkyl, R.sup.2 represents substituted or unsubstituted alkyl, alkenyl, cycloalkyl, aryl, or aryl-alkyl, or R.sup.1 and R.sup.2 taken together with the adjacent nitrogen atom represent a saturated 5-, 6-, 7-, or 8-membered heterocyclic ring, which may contain an additional heteroatom selected from --O--, --S--, and --N(H, Alkyl)--, and optionally bear one or more alkyl or alkenyl substituents, and

REFERENCES:
patent: 4447639 (1984-05-01), Sofranko et al.
Sorokina et al., Chemical Abstracts, vol. 77, No. 1, Jul. 1972, 5823v.

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