Ring halogenations of polyalkylbenzenes by ionic halides and Koser's reagent
作者:Pakorn Bovonsombat、Elsa Djuardi、Edward Mc Nelis
DOI:10.1016/s0040-4039(00)76639-1
日期:1994.5
Ring chlorinations of polyalkylbenzenes such as mesitylene have been carried out at room temperature with LiCl or NaCl and stoichiometric amounts of Koser's reagent. Solvents range from water to methylene chloride. The procedures were extended to bromination and iodination.
Varma; Subrahmanian, Journal of the Indian Chemical Society, 1936, vol. 13, p. 192
作者:Varma、Subrahmanian
DOI:——
日期:——
KAJIGAESHI, SHOJI;KAKINAMI, TAKAAKI;MORIWAKI, MASAYUKI;TANAKA, TOSHIO;FUJ+, BULL. CHEM. SOC. JAP., 62,(1989) N, C. 439-443
Bovonsombat Pakorn, Djuardi Elsa, Mc Nelis Edward, Tetrahedron Lett, 35 (1994) N 18, S 2841-2844
作者:Bovonsombat Pakorn, Djuardi Elsa, Mc Nelis Edward
DOI:——
日期:——
LIGHT-EMITTING MATERIAL AND ORGANIC LIGHT-EMITTING DEVICE
申请人:Cambridge Display Technology Limited
公开号:US20160260914A1
公开(公告)日:2016-09-08
A compound of formula (I)
wherein M is a transition metal; L is a ligand; x is at least 1; y is 0 or a positive integer; R
1
in each occurrence is independently a substituent; R
2
and R
3
in each occurrence is independently H or a substituent, with the proviso that at least one of R
1
, R
2
and R
3
is a group X comprising at least one aryl or heteroaryl group. The compound of formula (I) may be used as a phosphorescent material in an organic light-emitting device.