. . . . "s the tertiary butyl group are not contemplated in positions adjacent to one another in the phenyl nucleus A represents alkyl, lower alkylphenyl and the group wherein R and R are the same as above, and B is a member selected from the group consisting of R is lower alkyl or hydrogen, and R is lower alkylene. and wherein In the foregoing Formula 1, R and R may be methyl, ethyl, propyl, butyl, pentyl" .