Acid-promoted SN1/E1 fragmentation/dimerization of 2-cumylmalonates
作者:Jonathan T. Reeves、Daniel R. Fandrick、Zhulin Tan、Jinhua J. Song、Nathan K. Yee、Chris H. Senanayake
DOI:10.1016/j.tetlet.2009.04.022
日期:2009.6
Several diethyl 2-cumylmalonates underwent fragmentation and dimerization in PPA at elevated temperatures to give 1,1,3-trimethyl-3-arylindanes in good yields. The same products were obtained from 2-cumylmalonic acid, ethyl 2-cumylcyanoacetate, and 2-cumyl Meldrum’s acid. This represents the first example of an SN1/E1 ionization with diethyl malonate as the leaving group.
几种2-枯基丙二酸二乙酯在升高的温度下在PPA中进行裂解和二聚,从而以良好的收率得到1,1,3-三甲基-3-芳基茚满。相同的产物得自2-枯基丙二酸,2-枯基氰基乙酸乙酯和2-枯基梅德鲁姆酸。这代表了以丙二酸二乙酯作为离去基团进行S N 1 / E1电离的第一个例子。
The preparation of highly branched ketones and alcohols
作者:W. A. Mosher、P. W. Berger、A. P. Foldi、J. E. Gardner、T. J. Kelly、C. Nebel
DOI:10.1039/j39690000121
日期:——
A procedure is described for the preparation of highlybranchedketones and alcohols with the general formulae R2R3R4C·CHR5·CO·R1 and R2R3R4C·CHR5·CR6(OH)R1. The multi-step route involves classical synthetic methods which give good yields. R may be varied and can be either alkyl or aryl.
描述了制备通式为R 2 R 3 R 4 C·CHR 5 ·CO·R 1和R 2 R 3 R 4 C·CHR 5 ·CR 6(OH)R的高度支化的酮和醇的方法1。多步路线涉及经典的合成方法,可提供良好的收率。R可以变化并且可以是烷基或芳基。
Unsymmetrical Quaternary Carbon Compounds. II. The Comparative 1,4-Additions of Grignard Reagents to Several Conjugated Systems<sup>1</sup>
作者:Franklin S. Prout、Elizabeth P.-Y. Huang、Robert J. Hartman、Charles J. Korpics
DOI:10.1021/ja01636a052
日期:1954.4
MOREL G.; SEUX R.; FOUCAUD A., BULL. SOC. CHIM. FRANCE <BSCF-AS>, 1975, NO 7-8, PART. 2, 1865-1870,
作者:MOREL G.、 SEUX R.、 FOUCAUD A.
DOI:——
日期:——
SAXABUTDINOV, A. G.;USMANOVA, A. G.;FROLOV, P. A.;KUSHNAREV, D. F.;SHMIDT+, ZH. ORGAN. XIMII, 24,(1988) N 8, S. 1610-1614
作者:SAXABUTDINOV, A. G.、USMANOVA, A. G.、FROLOV, P. A.、KUSHNAREV, D. F.、SHMIDT+