A simple procedure has been developed for the conversion of 2-phenylbicyclo[1.1.1]pentan-2-ol to 2-phenyl-bicyclo[1.1.1]pentane. Oxidation gives bicyclo[1.1.1]pentane-2-carboxylic acid which may be converted to the amine, the nitro derivative, and the phenyl ketone. The pK(a) values for the carboxylic acid and related acids were determined, and the pK(s)'s of the amine hydrochloride and related compounds also were studied. The pK(a)'s of the amines were approximately linearly related to the percent s character determined from the (H-C)-H-1 NMR coupling constants. The pK(a) of the nitro derivative was determined, and the kinetic acidity of the phenyl ketone also was measured. The relationship of the differences in energy to the changes in strain energy is discussed. In an effort to prepare a compound with substituents at both the 1- and 2-positions, the reaction of 1,3-dinitrobicyclo[1.1.1]pentane with oxalyl chloride was examined. The reaction had a surprising course, leading to 2,2-dichloro-1,3-dinitrobicyclo[1.1.1]pentane.
DOI:
10.1021/jo00058a015
作为产物:
描述:
环丁基苯(基甲)酮 在
汞氮气 、 residue 、 乙酸乙酯 、 乙醚 作用下,
以
苯 为溶剂,
反应 48.0h,
以to give the desired product as a white solid (0.9 g, 5.6 mmol, yield: 30%)的产率得到5-苯基双环[1.1.1]戊烷-5-醇
参考文献:
名称:
Substituted diaminocarboxamide and diaminocarbonitrile pyrimidines, compositions thereof, and methods of treatment therewith
[EN] SUBSTITUTED DIAMINOCARBOXAMIDE AND DIAMINOCARBONITRILE PYRIMIDINES, COMPOSITIONS THEREOF, AND METHODS OF TREATMENT THEREWITH<br/>[FR] DIAMINOCARBOXAMIDEPYRIMIDINES ET DIAMINOCARBONITRILEPYRIMIDINES SUBSTITUÉES, COMPOSITIONS DE CELLES-CI ET PROCÉDÉS DE TRAITEMENT À L'AIDE DE CELLES-CI
申请人:SIGNAL PHARM LLC
公开号:WO2012145569A1
公开(公告)日:2012-10-26
Provided herein are Diaminopyrimidine Compounds having the following structures: wherein R1, R2, R3, and R4 are as defined herein, compositions comprising an effective amount of a Diaminopyrimidine Compound, and methods for treating or preventing liver fibrotic disorders or a condition treatable or preventable by inhibition of a JNK pathway.
SUBSTITUTED DIAMINOCARBOXAMIDE AND DIAMINOCARBONITRILE PYRIMIDINES, COMPOSITIONS THEREOF, AND METHODS OF TREATMENT THEREWITH
申请人:Bennett Brydon L.
公开号:US20130029987A1
公开(公告)日:2013-01-31
Provided herein are Diaminopyrimidine Compounds having the following structures:
wherein R
1
, R
2
, R
3
, and R
4
are as defined herein, compositions comprising an effective amount of a Diaminopyrimidine Compound, and methods for treating or preventing liver fibrotic disorders or a condition treatable or preventable by inhibition of a JNK pathway.
Substituted diaminocarboxamide and diaminocarbonitrile pyrimidines, compositions thereof, and methods of treatment therewith
申请人:Bennett Brydon L.
公开号:US09139534B2
公开(公告)日:2015-09-22
Provided herein are Diaminopyrimidine Compounds having the following structures:
wherein R1, R2, R3, and R4 are as defined herein, compositions comprising an effective amount of a Diaminopyrimidine Compound, and methods for treating or preventing liver fibrotic disorders or a condition treatable or preventable by inhibition of a JNK pathway.
Metallaphotoredox-enabled deoxygenative arylation of alcohols
作者:Zhe Dong、David W. C. MacMillan
DOI:10.1038/s41586-021-03920-6
日期:2021.10.21
organic synthesis. A general method for the direct deoxygenative cross-coupling of free alcohols must overcome several challenges, most notably the in situ cleavage of strong C–O bonds3, but would allow access to the vast collection of commercially available, structurally diverse alcohols as coupling partners4. We report herein a metallaphotoredox-based cross-coupling platform in which free alcohols