Process for making 2-amino-3-methyl-1-naphthalenecarbonitrile
US5194658A · kind A · utility
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Key dates
| Filing date | Mar 20, 1992 |
| Grant date | Mar 16, 1993 |
| Priority date | — |
| Expiry date | Mar 20, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/200833
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.