Method for preserving quaternary ammonium salt

Details Method for preserving quaternary ammonium salt Method for preserving quaternary ammonium salt

2005-02-08

2005-02-08

Raymond, Richard L. (Department: 1624)

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

Organic compounds

Chalcogen in the nitrogen containing substituent

Reexamination Certificate

active

06852856

ABSTRACT:
A method of improving the stability of a quaternary ammonium salt and a method of efficiently preparing the quaternary ammonium salt having improved stability.

REFERENCES:
patent: 3826788 (1974-07-01), Froehlich et al.
Kunishima et al., Tetrahedron, 55(46), pp. 13159-13170, 1999.

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