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Bifunctionalized Allenes. Part XXIII. An Efficient Method for Regioselective Synthesis of 5-Phosphorylated Allenecarboxylates Cover

Bifunctionalized Allenes. Part XXIII. An Efficient Method for Regioselective Synthesis of 5-Phosphorylated Allenecarboxylates

Open Access
|Dec 2020

Abstract

An efficient method for regioselective synthesis of 5-(dimethoxyphosphoryl)-allenecarboxylates by an atom economical [2,3]-sigmatropic rearrangement of the mediated 3-(dimethoxyphosphanyloxy)-alk-4-ynoates is described. Alkyl 5-(dimethoxyphosphoryl)-alka-3,4-dienoates can be readily prepared via reaction of alkyl 3-hydroxy-alk-4-ynoates with dimethylchlorophosphite in the presence of a base. Alkyl 3-hydroxy-alk-4-ynoates were prepared by reaction of the metallated acetylenes with commercialy available alkyl 3-oxoalkanoates.

DOI: https://doi.org/10.2478/asn-2020-0029 | Journal eISSN: 2603-347X | Journal ISSN: 2367-5144
Language: English
Page range: 1 - 10
Published on: Dec 8, 2020
Published by: Konstantin Preslavski University of Shumen
In partnership with: Paradigm Publishing Services
Publication frequency: 1 issue per year

© 2020 Hasan H. Hasanov, Ivaylo K. Ivanov, Valerij Ch. Christov, published by Konstantin Preslavski University of Shumen
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.