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Title:
A BISLACTAMAMIDE DERIVATIVE AS INTERMEDIATE IN THE PRODUCTION OF DI I SOCYANATE
Document Type and Number:
WIPO Patent Application WO2008064887
Kind Code:
A8
Abstract:
The invention relates to a method for preparing an intermediate compound for a diisocyanate, comprising reacting a diamine represented by the formula H2N-(CH2)0-Y-(CH2)p-NH2 wherein Y is selected from CH(OX) or CH(COOX), o and p each are an integer of 0-4, with the proviso that the sum of o and p is 4 or less, preferably 2, 3 or 4, X is a protective group, with a carbonylbislactam, preferably carbonylbiscaprolactam, thereby forming a compound with the formula (I) wherein each L is a lactam from the carbonylbislactam.

Inventors:
DIAS AYLVIN JORGE ANGELO ATHAN (NL)
PLUM BARTHOLOMEUS JOHANNES M (NL)
LOONTJENS JACOBUS ANTONIUS (NL)
Application Number:
PCT/EP2007/010356
Publication Date:
September 04, 2008
Filing Date:
November 29, 2007
Export Citation:
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Assignee:
DSM IP ASSETS BV (NL)
DIAS AYLVIN JORGE ANGELO ATHAN (NL)
PLUM BARTHOLOMEUS JOHANNES MAR (NL)
LOONTJENS JACOBUS ANTONIUS (NL)
International Classes:
A61L17/10; A61L27/18; C07C263/08; C07C265/04; C07D201/02; C07D223/10; C08G18/12
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