The intramolecular silyl modified sakurai (ISMS) reaction. A novel and highly convergent synthesis of oxocenes
作者:Abdelaziz Mekhalfia、István E Markó、Harry Adams
DOI:10.1016/s0040-4039(00)92307-4
日期:1991.1
By employing the intramolecular version of the SMS reaction, oxocenes, including spiroethers and spiroketals, can be prepared in a highly convergent, one-step operation.
通过使用SMS的分子内形式,可以以高度收敛的一步式操作制备茂新化合物,包括螺醚和螺酮化合物。
The Hydrolysis of Cyclic Orthoesters. Stereoelectronic Control in the Cleavage of Hemiorthoester Tetrahedral Intermediates
作者:Pierre Deslongchamps、Robert Chênevert、Roland J. Taillefer、Claude Moreau、John K. Saunders
DOI:10.1139/v75-226
日期:1975.6.1
The synthesis of several cyclic dialkoxy orthoesters is reported. Acidhydrolysis of these orthoesters under kinetically controlled conditions gives the corresponding hydroxy esters only. Conformationally rigid cyclic mixed orthoesters give a hydroxy ester by exclusive loss of the axial alkoxy group. A cyclic orthoester can have nine different gauche conformations. It is shown that they are hydrolyzed
Preparation and Synthetic Utility of 2-Methylselenomethyl Allyl Methyl Selenide. A Valuable Precursor to 2-Silylmethylallyllithiums
作者:Alain Krief
DOI:10.1055/s-1998-1915
日期:1998.11
3-Lithio-2-[silylmethyl]propenes, easily prepared from 3-methylseleno-2-[silylmethyl]propenes by the cleavage of the C-Se bond, are useful intermediates for the preparation of a variety of functionalised allylsilanes. These allylsilanes are interesting building blocks, used for example, as annelating agents in the efficient synthesis of spiroketals by the Intramolecular Silyl-Modified Sakurai (ISMS)
Regiocontrol in the intramolecular silyl modified sakurai (ISMS) reaction. An efficient synthesis of a Dacus oleae fruit fly pheromone.
作者:István E. Markó、Abdelaziz Mekhalfia
DOI:10.1016/s0040-4039(00)91736-2
日期:1992.3
The ISMS reaction, which initially afforded a mixture of regioisomeric olefins, can now be controlled to produce only the exocyclic alkene. The ISMS methodology was used in a highlyefficientsynthesis of a Dacus oleae pheromone 8.