Efficient Synthesis of Acylsilanes Using Morpholine Amides
作者:Christopher T. Clark、Benjamin C. Milgram、Karl A. Scheidt
DOI:10.1021/ol0483854
日期:2004.10.1
text] A general synthesis of acylsilanes from the corresponding morpholine amides and silyllithium species is described. The use of morpholine amides is economical and prevents over-addition by the silyl nucleophile. The procedure cleanly affords acylsilanes in good yields and circumvents the use of stoichiometric copper(I) cyanide typically employed to synthesize these compounds from acid chlorides.
Intermolecular Schmidt reaction of alkyl azides with acyl silanes
作者:Chun-Jiao Yu、Rui Li、Peiming Gu
DOI:10.1016/j.tetlet.2016.06.124
日期:2016.8
The first intermolecular Schmidt reaction of alkyl azides with acyl silanes has been designed and realized, producing a range of amides with absolute site selectivity in good to excellent yields. The mechanism of the conversion has been proposed, and the reaction exhibits scope of substrates.
Zinc-catalyzed synthesis of acylsilanes using carboxylicacids and a silylborane has been achieved in the presence of pivalic anhydride. Various carboxylicacids were converted to the corresponding acylsilanes. The in situ formation of mixed anhydrides was essential in the present reaction.
Regio‐ and Stereoselective Synthesis of Fully Substituted Silyl Enol Ethers of Ketones and Aldehydes in Acyclic Systems
作者:Peter‐Yong Wang、Guillaume Duret、Ilan Marek
DOI:10.1002/anie.201909089
日期:2019.10.14
The regio- and stereoselective preparation of fully substituted and stereodefined silylenolethers of ketones and aldehydes through an allyl-Brook rearrangement is reported. This fast and efficient method proceeds from a mixture of E and Z isomers of easily accessible starting materials.
Oxidation of α-hydroxysilanes by lead tetraacetate
作者:María Dolores Paredes、Ricardo Alonso
DOI:10.1016/s0040-4039(99)00646-2
日期:1999.5
The effect of α-silyl substitution on the oxidation of alcohols by leadtetraacetate has been evaluated. Under typical conditions for converting alcohols to cyclic ethers, α-hydroxysilanes are instead efficiently transformed into mixed acetylsilyl acetals.