Anionic Multisubstituted 1,2-Azaborolyl Ligands: Syntheses, Characterization, and Coordination Chemistry
摘要:
Two synthetic methods for the preparation of tri- or tetrasubstituted 1,2-azaborolyls (Ab) are described. Both tri- and tetrasubstituted Ab rings can be conveniently attained via either dilithiation-directed or Cp(2)Zr(II)-mediated cyclization followed by transmetalation in good yields. In particular, anionic 1,2,4-trimethyl-1,2-azaborolyl and 1,2,3,4-tetramethyl-1,2-azaborolyl, readily prepared through our methods, have been demonstrated as good supporting ancillary ligands in group IV metal complexes.
DOI:
10.1021/om8001075
作为产物:
描述:
Cp2Zr(CH3CHCHCHN(tBu)) 、 二氯苯酚溴酯 以
not given 为溶剂,
以0%的产率得到1-tert-butyl-3-methyl-2-phenyl-Δ(3)-1,2-azaboroline
参考文献:
名称:
Anionic Multisubstituted 1,2-Azaborolyl Ligands: Syntheses, Characterization, and Coordination Chemistry
摘要:
Two synthetic methods for the preparation of tri- or tetrasubstituted 1,2-azaborolyls (Ab) are described. Both tri- and tetrasubstituted Ab rings can be conveniently attained via either dilithiation-directed or Cp(2)Zr(II)-mediated cyclization followed by transmetalation in good yields. In particular, anionic 1,2,4-trimethyl-1,2-azaborolyl and 1,2,3,4-tetramethyl-1,2-azaborolyl, readily prepared through our methods, have been demonstrated as good supporting ancillary ligands in group IV metal complexes.
Anionic Multisubstituted 1,2-Azaborolyl Ligands: Syntheses, Characterization, and Coordination Chemistry
作者:Xiangdong Fang、Jalil Assoud
DOI:10.1021/om8001075
日期:2008.6.9
Two synthetic methods for the preparation of tri- or tetrasubstituted 1,2-azaborolyls (Ab) are described. Both tri- and tetrasubstituted Ab rings can be conveniently attained via either dilithiation-directed or Cp(2)Zr(II)-mediated cyclization followed by transmetalation in good yields. In particular, anionic 1,2,4-trimethyl-1,2-azaborolyl and 1,2,3,4-tetramethyl-1,2-azaborolyl, readily prepared through our methods, have been demonstrated as good supporting ancillary ligands in group IV metal complexes.