溶剂分解反应中的结构效应。45. 碳正离子的碳 13 核磁共振研究。9. 随着 1,1-二芳基-1-乙基碳阳离子中电子需求的增加,阳离子碳化学位移的变化。电感局部 pi 极化效应在引起线性偏差方面的重要性
摘要:
Etude systematique des effets de substituants sur les carbocations aryl。在观察 dans 某些 cas une 偏差 par rapport a la linearite entre les deplacements chimiques du carbone cationique et la constante GC + et l'on suggere que de Telles 偏差 不存在极化 π localisee
The rhodium-catalysed 1,2-addition of arylboronic acids to aldehydes and ketones with sulfonated S-Phos
摘要:
The rhodium-catalysed 1,2-addition of arylboronic acids to aryl aldehydes has been accomplished in high yield using sulfonated S-Phos, a water-soluble biaryl phosphine ligand which allows for catalyst recycling. The catalytic protocol has also been successful in the challenging arylation of ketones. (C) 2009 Elsevier Ltd. All rights reserved.
MOUSSA, G. E. M.;SHABAN, M. E.;GIRGIS, D. B., EGUPT. J. CHEM., 30,(1987(1988)) N, C. 77-83
作者:MOUSSA, G. E. M.、SHABAN, M. E.、GIRGIS, D. B.
DOI:——
日期:——
The rhodium-catalysed 1,2-addition of arylboronic acids to aldehydes and ketones with sulfonated S-Phos
作者:James R. White、Gareth J. Price、Pawel K. Plucinski、Christopher G. Frost
DOI:10.1016/j.tetlet.2009.10.082
日期:2009.12
The rhodium-catalysed 1,2-addition of arylboronic acids to aryl aldehydes has been accomplished in high yield using sulfonated S-Phos, a water-soluble biaryl phosphine ligand which allows for catalyst recycling. The catalytic protocol has also been successful in the challenging arylation of ketones. (C) 2009 Elsevier Ltd. All rights reserved.
Structural effects in solvolytic reactions. 45. Carbon-13 NMR studies of carbocations. 9. Variation of the cationic carbon chemical shifts with increasing electron demand in 1,1-diaryl-1-ethyl carbocations. Importance of the inductive localized .pi.-polarization effect in causing deviations from linearity
作者:Herbert C. Brown、Mariappan Periasamy、P. Thirumalai Perumal、David P. Kelly、Joseph J. Giansiracusa
DOI:10.1021/ja00358a019
日期:1983.9
Etude systematique des effets de substituants sur les carbocations aryl. On observe dans certains cas une deviation par rapport a la linearite entre les deplacements chimiques du carbone cationique et la constante GC + et l'on suggere que de telles deviations sont dues a une polarisation π localisee
Etude systematique des effets de substituants sur les carbocations aryl。在观察 dans 某些 cas une 偏差 par rapport a la linearite entre les deplacements chimiques du carbone cationique et la constante GC + et l'on suggere que de Telles 偏差 不存在极化 π localisee