| abstract |
A LEUCAURAMINE COMPOUND OF THE GENERAL FORMULA: (R1-N(-R2)-A-CH(-N(-X)-R)-B-N(-R3)-R4) (-COOH)N WHEREIN A AND B EACH INDEPENDENTLY REPRESENTS AN OPTIONALLY SUBSTITUTED 1,4-ARYLENE RESIDUE; R REPRESENTS HYDROGEN, HYDROXYL, ALKOY OR AN OPTIONALLY SUBSTITUTED AMINO, ALKYL, ARALKYL OR CYCLOALKYL RADICAL; X REPRESENTS HYDROGEN OR AN OPTIONALLY SUBSTITUTED HYDROCARBON RADICALS WHICH MAY CONTIN ONE OR MORE HETERO ATOMS, OR R AND X TOGETHER WITH THE ATTACHED NITROGEN ATOM FORM AN OPTIONALLY SUBSTITUTED HETEROCYCLIC RING; EACH OF R1, R2, R3 AND R4 INDEPENDENTLY REPRESENTS HYDROGEN OR AN OPTIONALLY SUBSTITUTED ALKYL, ARALKYL, CYCLOALKYL OR ARYL RADICAL OR FORMS PART OF A DIVALENT ORGANIC CHAIN WHICH TOGETHER WITH THE ATTACHED NITROGEN ATOM CONSTITUTES A HETEROCYCLIC RING AND N HAS A VALUE OF 1, 2 OR 3 PROVIDED THAT WHEN R IS HYDROGEN AND EACH OF R1-N(-R2)-A- AND R3-N(-R4)-B- IS 4-METHYLAMINOPHENYL, X IS NOT 2- OR 4-CARBOXYPHENYL, THE COMPOUNDS ARE SUITABLE FOR USE IN THE PRODUCTION OF CLEAN-TO-HANDLE CARBON PAPERS USEFUL IN A SPIRIT-PRODUCING PROCESS. |