Degradational Cyclization of a-[2-Phenyl-2-(phenylsulfonylhydrazono)ethyl]phenacylidenetriphenylphosphoranes to 3,6-Diphenylpyridazines and 5-Benzoyl-3-phenylpyrazoles
摘要:
alpha-[2-Phenyl-2-(phenylsulfonylhydrazono)ethyl]phenacylidene- triphenylphosphoranes were obtained (60-71%) by the reaction between phenylsulfonylhydrazones of phenacyl bromides and phenacylidenetriphenylphosphoranes. Thermolysis of the phosphoranes gave 3,6-diphenylpyridazines (43-66%) and 5-benzoyl-3-phenylpyrazoles (13-27%), together with triphenylphosphine oxide and S-phenyl benzenethiosulfonate, a disproportionation product from benzenesulfinic acid. The structure of the intermediate alpha-substituted phenacylidenetriphenylphosphorane was confirmed by an X-Ray diffraction method.
Solid Phase Synthesis of Pyridazine Derivatives Using Polymer-Bound Sodium Benzenesulfinate
作者:Yu Chen、Yulin Lam、Soo-Ying Lee
DOI:10.1246/cl.2001.274
日期:2001.3
solid phase synthesis of 3,6-disubstitutedpyridazine derivatives, resulting from the reaction of polymer-bound sodium benzenesulfinate with α-bromoketone substrates followed by condensation with hydrazine, is described. Mild basic conditions for the condensation reaction simultaneously release the desired product from the solid support. The crystal structure of 3,6-bis(p-chlorophenyl)pyridazine is reported
Heterocyclic compound and organic light emitting device using the same
申请人:LG CHEM, LTD.
公开号:US11081655B2
公开(公告)日:2021-08-03
The present disclosure relates to a novel cyclic compound represented by Chemical Formula 1 and an organic light emitting device using the same. The compound is used as a material of an organic material layer of the organic light emitting device.
KADDAH A. M.; KHALIL A. M., INDIAN J. CHEM., 1977, B 15, NO 11, 1025-1028
作者:KADDAH A. M.、 KHALIL A. M.
DOI:——
日期:——
Degradational Cyclization of a-[2-Phenyl-2-(phenylsulfonylhydrazono)ethyl]phenacylidenetriphenylphosphoranes to 3,6-Diphenylpyridazines and 5-Benzoyl-3-phenylpyrazoles
作者:Suketaka Ito、Akikazu Kakehi、Kyoko Okada
DOI:10.3987/com-99-8733
日期:——
alpha-[2-Phenyl-2-(phenylsulfonylhydrazono)ethyl]phenacylidene- triphenylphosphoranes were obtained (60-71%) by the reaction between phenylsulfonylhydrazones of phenacyl bromides and phenacylidenetriphenylphosphoranes. Thermolysis of the phosphoranes gave 3,6-diphenylpyridazines (43-66%) and 5-benzoyl-3-phenylpyrazoles (13-27%), together with triphenylphosphine oxide and S-phenyl benzenethiosulfonate, a disproportionation product from benzenesulfinic acid. The structure of the intermediate alpha-substituted phenacylidenetriphenylphosphorane was confirmed by an X-Ray diffraction method.
신규한 화합물 및 이를 포함하는 유기발광 소자
申请人:LG CHEM, LTD. 주식회사 엘지화학(120010134563) Corp. No ▼ 110111-2207995BRN ▼107-81-98139