Synthesis of sterically hindered secondary aminoether alcohols

Details Synthesis of sterically hindered secondary aminoether alcohols Synthesis of sterically hindered secondary aminoether alcohols

2005-02-01

2008-09-30

O'Sullivan, Peter G (Department: 1621)

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

Organic compounds

Amino nitrogen containing

C564S506000, C564S507000, C564S508000

Reexamination Certificate

active

07429680

ABSTRACT:
Severely sterically hindered secondary aminoether alcohols are prepared by reacting an organic carboxylic acid or alkali metal salt of an organic carboxylic acid with a sulfonyl halide, a sulfuryl halide, a mixed sulfuryl ester halide or a mixed sulfuryl amide halide to yield a sulfonic-carboxylic anhydride compound which is then reacted with a dioxane to cleave the ring of the dioxane, yielding a cleavage product which cleavage product is then aminated with an alkylamine and hydrolyzed with base to yield the severely sterically hindered secondary aminoether alcohol.

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