Process for the preparation of carbazates

Details Process for the preparation of carbazates Process for the preparation of carbazates

1996-10-21

1998-05-26

Shippen, Michael L.

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

Organic compounds

Carboxylic acid esters

C07C26100

Patent

active

057568243

ABSTRACT:
Alkyl carbazates of the formula R.sup.1 --O--CO--NH--NH.sub.2 (I) are prepared in an advantageous manner by reacting an alkyl carbazate of the formula R.sup.2 --O--CO--NH--NH.sub.2 (II) with alcohols of the formula R.sup.1 --OH (III) in the presence of a catalyst, where the symbols used in the formulae are as defined in the description.

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patent: 5380828 (1995-01-01), Ravichandran
Adams, Chemical Reviews, vol. 65, pp. 567-602, 1965.
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C.H. Scaman, et al., Inhibition of Cytoplasmic Aspartate Aminotransferase from Porcine Heart by R and S Isomers of Aminooysuccinate and Hydrazinosuccinate*, The Journal of Biological Chemistry, vol. 266, No. 9, pp. 5525-5533, (1991).
Berichte der Deutschen, Gesellschaft, Bd. 47, No. 2, 1914, Seiten 2183-2188, XP000617234, Diels O: "Darstellung und Neue Reaktionen der Hydrazin-Monocarbonsaeureester".
A.-A.G. Shaikh, et al., Dialkyl and Diaryl Carbonates by Carbonate Interchange Reaction with Dimethyl Carbonate.sup..dagger., Ind. Eng. Chem. Res., 31, pp. 1167-1170, (1992).

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