Process for making 2-amino-3-methyl-1-naphthalenecarbonitrile

Details Process for making 2-amino-3-methyl-1-naphthalenecarbonitrile Process for making 2-amino-3-methyl-1-naphthalenecarbonitrile

1992-03-20

1993-03-16

Higel, Floyd D.

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

Organic compounds

Nitriles

558409, 558431, 436106, 436111, 436128, C07C25500, G01N 3300

Patent

active

051946580

ABSTRACT:
2-amino-3-methyl-1-naphthalenecarbonitriles of the formula: ##STR1## wherein R is alkyl of from 1 to 6 carbon atoms, halogen, cyano, or hydrogen are prepared by pyrolizing a by-product of a SAN or ABS manufacturing process of the formula: ##STR2## wherein R is alkyl of from 1 to 6 carbon atoms, halogen, cyano, or hydrogen.
In another respect, this invention is a process for identifying aldehydes comprising: (a) contacting 2-amino-3-methyl-1-naphthalene-carbonitrile with aldehydes to form an UV-absorbing imine, and (b) analyzing the imine using conventional analytical techniques to identify the presence of the imines.

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Kirchner et al., "The Formation of Oligomers in the Thermal Copolymerisation of the Styrene/Acrylonitrile-System," Makromol Chem., 177,2031-2042(1976).
E. J. Stark et al., "The Thermal Decomposition of Styrene-Co-Acrylonitrile Trimers to Form 2-Amino-3-Methyl-1-Napthalene-carbonitrile,"J. of Macromolecular Science: Macromolecular Reports, A29(Supp. 1), pp. 1-11 (Apr. 1992).
Chemical Abstract 103:178024u (1985), Lan et al.
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