Patent ID: 6225487
Filing Date: 2001-05-01
Classification: C07C,C07D,C07F,C40B

Abstract:
A compound characterized by the general formula: ##STR17##whereineach R.sup.1 and R.sup.2 is independently selected from the group consisting of hydrogen, alkyl, substituted alkyl, cycloalkyl, substituted cycloalkyl, heteroalkyl, heterocycloalkyl, substituted heterocycloalkyl, heteroaryl, substituted heteroaryl, alkoxy, silyl, boryl, phosphino amino, thio, seleno, and combinations thereof;each R.sup.3, R.sup.4 and R.sup.5 is independently selected from the group consisting of hydrogen, alkyl, substituted alkyl, cycloalkyl, substituted cycloalkyl, heteroalkyl, heterocycloalkyl, substituted heterocycloalkyl, aryl, substituted aryl, heteroaryl, substituted heteroaryl, alkoxy, aryloxy, silyl, boryl, phosphino amino, thio, seleno, and combinations thereof; optionally, R.sup.1 and R.sup.2 are joined together in a ring structure and/or R.sup.3 and R.sup.4 are joined together in a ring structure;each of Q.sup.1 and Q.sup.2 is independently selected from the group consisting of hydrogen, alkyl, substituted alkyl, cycloalkyl, substituted cycloalkyl, heteroalkyl, heterocycloalkyl, substituted heterocycloalkyl, aryl, substituted aryl, heteroaryl, substituted heteroaryl, alkoxy, aryloxy, silyl, boryl, phosphino, amino, thio, seleno, and combinations thereof; optionally Q.sup.1 and Q.sup.2 are joined together in a ring structure;X is selected from the group consisting of C, H, O, P, B, Si, and N atoms; and a is 0, 1, 2, or 3, depending on X;Y is selected from the group consisting of N, P and O atoms; and b is 1 or 2, depending on Y; andC is a sp.sup.3 -hybridized carbon atom, provided that when Y is N and Q.sup.1 and Q.sup.2 are joined in a ring structure with the two carbon atoms in the backbone of the ligand to form benzene, then R.sup.5 is not hydrogen.