Organic compounds -- part of the class 532-570 series – Organic compounds – Amino nitrogen containing
Patent
1982-09-20
1984-12-04
Shaver, Paul F.
Organic compounds -- part of the class 532-570 series
Organic compounds
Amino nitrogen containing
C07C 8500, C07C 8736
Patent
active
044866038
ABSTRACT:
A process is disclosed for selectively making trans-cyclohexane-1,4-diisocyanate, trans-cyclohexane-1,4-diamine, a trans-cyclohexane-1,4-diurethane, a trans-cyclohexane-1,4-diurea and trans-cyclohexane-1,4-disulphonyl urea by reacting ammonia with a mixture of cis and trans cyclohexane-1,4-dicarboxylic acid, a lower alkyl ester, a glycol ester, an oligomeric ester or a polyester to make a solid trans-dicarboxylic acid diamide in a first step. The diamide is chlorinated to form trans-cyclohexane-1,4-dicarboxylic acid-bis-N-chloramide. The latter compound is then converted into a
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Bergfeld Manfred
Zengel Hans
Akzona Incorporated
Hall Jack H.
Shaver Paul F.
Young Francis W.
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