申请人:AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
公开号:US20160207034A1
公开(公告)日:2016-07-21
The invention provides compounds of general structure I: (Ar
1
—Ar
2
—Ar
3
-E-P(=D)R
2
-)
n
M
m
X
n
L
n
″. In this structure: •Ar
1
, Ar
2
and Ar
3
are aromatic groups wherein: —Ar
1
and Ar
3
are in a 1,3 relationship on Ar
2
, —each of Ar
1
, Ar
2
and Ar
3
optionally comprises one or more ring substituents of formula YR′
r
wherein each Y independently is absent or is O, S, B, N or Si and each R′ is independently H, halogen, alkyl, cycloalkyl, aryl or heteroaryl and r is 1, 2 or 3, where r is 1 if Y is absent or is O or S, 2 if Y is B or N and 3 if Y is Si, —Ar
1
, Ar
2
and Ar
3
are each independently carbocyclic or heterocyclic and each is independently monocyclic, bicyclic or polycyclic and each ring of each of Ar
1
, Ar
2
and Ar
3
independently has 5, 6 or 7 ring atoms; •E is absent or is selected from the group consisting of O, S, NR″, SiR″
2
, AsR″
2
and CR″
2
; •M is a complexing metal; •X is selected from the group consisting of H, F, Br, CI, I, OTf, dba (dibenzylidene acetone), OC(═O)CF
3
and OAc; •L is selected from the group consisting of PR″
2
, NR″
2
, OR″, SR″, SiR″
3
, AsR″
3
, alkene, alkyne, aryl and heteroaryl, each of said alkene, alkyne, aryl and heteroaryl being optionally substituted, for example with one or more halogens and/or with one or more R groups as defined herein; •each R is independently alkyl, cycloalkyl, heterocyclyl, heterocycloalkyl, aryl or -, heteroaryl; •D is absent or is ═S or —O or —Z-linker-Z—, where each Z independently is O or NH or N-alkyl and linker is an alkyl chain of 2-5 carbon atoms in length; •each R″ is independently H, alkyl, cycloalkyl, heterocycloalkyl, aryl or heteroaryl, each other than H being optionally substituted, or R″
2
is —Z-linker-Z— as defined above; and •m is 0 or 1 or 2; wherein if m is 0, n is 1, n′ and n″ are 0 and -- is absent; and if m is 1 or 2, n is 1 or 2 and n′ and n″ are intege