申请人:Xerox Corporation
公开号:US20150065697A1
公开(公告)日:2015-03-05
Disclosed is a compound of the formula
wherein R
a
and R
b
each, independently of the other, are hydrogen, alkyl, aryl, arylalkyl, or alkylaryl, R
1
and R
2
each, independently of the other, are hydrogen, alkyl, aryl, arylalkyl, or alkylaryl, provided that at least one of R
1
and R
2
is other than hydrogen, and R
3
, R
4
, R
5
, R
6
, and R
7
each, independently of the others, are alkyl, aryl, arylalkyl, alkylaryl, or a substituent other than hydrogen, alkyl, aryl, arylalkyl, or alkylaryl, wherein in each case alkyl, aryl, arylalkyl, or alkylaryl may or may not be substituted and may or may not have hetero atoms therein, and wherein two or more of R
3
, R
4
, R
5
, R
6
, and R
7
can be joined together to form a ring.
公开了一个化合物的结构,其中 Ra 和 Rb 各自独立地是氢、烷基、芳基、芳基烷基或烷基芳基;R1 和 R2 各自独立地是氢、烷基、芳基、芳基烷基或烷基芳基,但至少其中一个不是氢;R3、R4、R5、R6 和 R7 各自独立地是烷基、芳基、芳基烷基、烷基芳基或除氢、烷基、芳基、芳基烷基或烷基芳基之外的取代基,其中在每种情况下,烷基、芳基、芳基烷基或烷基芳基可能被取代,可能含有杂原子,并且其中的 R3、R4、R5、R6 和 R7 中的两个或更多个可以结合在一起形成环。