Patent ID: 6037471
Filing Date: 2000-03-14
Classification: C07D,C09K,G02F

Abstract:
A salt of the compound having the formula: ##STR3## where if R.sub.1 is phenyl substituted with methoxy or a trimethyl substituted phenyl, R.sub.1' is alkyl having 1 to 9 carbons, and R.sub.2, R.sub.2', R.sub.6 and R.sub.6' are hydrogen; andif R.sub.1 and R.sub.1' are m-xylyl and R.sub.2, R.sub.2', R.sub.6, and R.sub.6' are hydrogen;if R.sub.1 is phenyl, R.sub.1' is an alkyl substituted aryl having 18 carbons, and R.sub.2, R.sub.2', R.sub.6, and R.sub.6' are hydrogen;if R.sub.1 and R.sub.1' are methyl, R.sub.2 is aralkyl having 8 or 9 carbons or alkyl having 6 carbons, and R.sub.2', R.sub.6, and R.sub.6' are the same or different and are selected from the group selected from hydrogen and alkyl and aralkyl having from 1 to 9 carbons.