Journal of Organic Chemistry p. 1074 - 1076 (1991)
Update date:2022-08-02
Topics:
Streitwieser, Andrew
Ciula, James C.
Krom, James A.
Thiele, Georg
A revised cesium ion pair acidity scale relative to fluorene at pKa = 22.90 is presented.The range of the scale is extended 3 pK units by including more acidic indicators and now encompasses pKas from 15.62 to 38.73.The accuracy of the scale has been improved by multiple equilibria among indicators.Uncertainties between close lying indicators is generally less than +/-0.01 pK unit.Broensted plots are constructed for series of fluorenyl and arylmethyl hydrocarbons.From these plots, the acidity value for toluene in THF was extrapolated (pKa = 40.9).Comparisons are drawn to ionic acidities in dimethyl sulfoxide.
View MoreShangHai Ruiyi Medical Technology Co.,Ltd.
Contact:+86-21-54718086
Address:No951 Jianchuan RD,Minhang District
Chiral Quest (Suzhou) Company Ltd
website:http://www.chiralquest.com
Contact:+86-0512-62956066
Address:B1/9, 218 Xinghu Street, Suzhou Industrial Park
Shandong Hongxiang Zinc Co., Ltd
Contact:086-0311-66187879
Address:DaWang developing zone
FOSHAN NANHAI ZHONGNAN PHARMACEUTICAL FACTORY
Contact:0086-0757-85609331
Address:XIAHENGTIAN INDUSTRIAL ZONE,SHAYONG VILLAGE,LISHUI TOWN
Springchem New Material Technology Co.,Limited
website:http://www.spring-chem.com
Contact:86-21-62885108
Address:602B, Building 1, No. 641, Tianshan Road
Doi:10.1021/jo00273a011
(1989)Doi:10.1039/c19680001615
(1968)Doi:10.1021/jm00304a012
(1969)Doi:10.1039/a803626h
(1998)Doi:10.1016/S0040-4039(00)84576-1
(1986)Doi:10.1039/a806823b
(1998)