Process for the preparation of substituted diamino-dicarboxylic

Electrolysis: processes – compositions used therein – and methods – Electrolytic synthesis – Preparing organic compound

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205438, 205441, 205442, 560157, 560161, 560169, C25B 300

Patent

active

056434383

ABSTRACT:
The invention relates to a new process for the preparation of substituted diaminodicarboxylic acid derivatives of the formula ##STR1## in a high yield by a modified Kolbe synthesis.

REFERENCES:
patent: 3879271 (1975-04-01), Nohe et al.
Nutt et al., "Useful Intermediates for Synthesis of Dicarba Analogues of Cystine Peptides: Selectively Protected .alpha.-Aminosuberic acid and .alpha.,.alpha.'-Diaminosuberic Acid of Defined Stereochemistry", J. Org. Chem., 45 (no Month, 1980), pp. 3078-3080.
Schafer: Angewandte Chemie 93, 978-1000, (no month 1981).
"Recent Contributions of Kolbe Electrolysis to Organic Synethsis", Electrochemistry IV, Springer-Verlag, (no month 1990,) pp. 92-95, E. Steckhan.
"Useful Intermediates for Synthesis of Dicarba Analogues of Cystine Peptides: Selectively Protected .alpha.-Aminosuberic Acid and .alpha., .alpha.'-Diaminosuberic Acid of Defined Stereochemistry", J. Org. Chem. 1980 45, 3078-3080, Jan. 18, 1980, pp. 3078-3080, R. Nutt et al.

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