Process for preparing 1,4,8,11-tetraazacyclotetradecane

Details Process for preparing 1,4,8,11-tetraazacyclotetradecane Process for preparing 1,4,8,11-tetraazacyclotetradecane

1996-07-30

1998-09-22

Shah, Mukund J.

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

Organic compounds

Unsubstituted hydrocarbyl chain between the ring and the -c-...

540450, C07D25502

Patent

active

058115447

ABSTRACT:
An improved process for preparing 1,4,8,11-tetraazacyclotetradecane comprising the bisacylation of an acyclic diamine to obtain a dichlorodiamide compound in a first step, the cyclization of said diamide compound to obtain dioxocyclam in a second step, and the reduction of dioxocyclam in a third step to obtain the desired 1,4,8,11-tetraazacyclotetradecane.

REFERENCES:
patent: 5047527 (1991-09-01), Handel et al.
patent: 5608061 (1997-03-01), Ciszewski et al.
Bradshaw et al; Chap IV in Azacrown Macrocycles; pp. 145-149, An Interscience Publication, John Wiley & Sons, Inc; 1993.

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