Active esters used for production of esters or amides and proces

Details Active esters used for production of esters or amides and proces Active esters used for production of esters or amides and proces

1989-06-20

1992-05-26

Chan, Nicky

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

Organic compounds

Sulfate esters

558 56, 560 24, 560 27, 560 32, 560 38, 560 41, 560145, C07C22908, C07C22936

Patent

active

051170310

ABSTRACT:
This invention is characterized by synthesizing an active ester represented by the general formula ##STR1## using an active esterifying agent consisting of a sulfonium salt represented by the general formula ##STR2## and further reacting the above-said active ester with a nucleophilic agent represented by the general formula H-B-Y to produce an ester or amide represented by the general formula (W) d.A-B-Y.

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Japanese Patent Application OPI No. 166670/1985 (Chem. Abst. 104, 8859p).
Chem. Abstr., 103, 196393t.
Preliminary Lecture Draft-52nd Annual Meeting of the Japanese Chemical Association.
K. Kouge et al. "Peptide Synthesis in Aqueous Solution. I. Application of p-Dialkyl-sulfoniophenols as a Water-Soluble Coupling Reagent"Bull. Chem. Soc. Japan, 60, 2409-2418 (1989).

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