THE ADDITION OF GRIGNARD REAGENTS TO BENZOFULVENES
作者:REYNOLD C. FUSON、FRANKLIN E. MUMFORD
DOI:10.1021/jo01136a013
日期:1952.2
Notes - The Base-Catalyzed Alkylation of Flourene with Secondary Alcohols
作者:D. Matthews、Ernest Becker
DOI:10.1021/jo01117a614
日期:1956.11
Development of a Robust Protocol for the Determination of Weak Acids’ p<i>K</i><sub>a</sub> Values in DMSO
作者:Sebastian T. Jung、Joachim Podlech
DOI:10.1021/acs.joc.0c00909
日期:2020.8.21
Two methods for the determination of pKa values of weakacids are described, a direct titration with dimsyl potassium in the presence of an indicator and a back-titration in which an analyte/indicator mixture is deprotonated and then titrated with ammonium chloride. Both methods have been validated by measuring pKa values of compounds, for which values had been determined previously. The back-titration
描述了两种测定弱酸的p K a值的方法,一种是在指示剂存在下用二甲基钾直接滴定,另一种是将分析物/指示剂混合物去质子化然后用氯化铵滴定的反滴定法。两种方法均已通过测量化合物的p K a值进行了验证,此前已确定了该值。采用反滴定法测量了两个1,3-二噻吩衍生的二亚砜和一砜的p K a值。
Steric effects on acidities of 9-alkyl-, 9-(alkylthio)-, and 9-alkoxyfluorenes and on the electron-transfer abilities of their conjugate bases
作者:Frederick G. Bordwell、Mark J. Bausch、Craig A. Wilson