期刊
TETRAHEDRON
卷 81, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2020.131898
关键词
Tertiary alcohols; Esters; Deep Eutectic Solvents; Organolithium compounds; Water chemistry
资金
- Programma Operativo Nazionale Ricerca e Innovazione [PON RI 2014/2020]
- Axis I Investments in Human Capital [1377]
- national PRIN project Unlocking Sustainable Technologies Through Nature-inspired Solvents (NATUREChem) [2017A5HXFC_002]
- University of Bari Aldo Moro
- Interuniversity Consortium C.I.N.M.P.I.S.
- Ministero dell'Universita e della Ricerca (MUR-PRIN)
- Spanish MINECO [CTQ2016-75986-P, CTQ2016-81797-REDC]
- University of Salento
An efficient protocol for synthesizing tertiary alcohols via nucleophilic addition has been developed, with high yields of up to 98%. The method demonstrates broad substrate scope and can be conducted under environmentally friendly conditions.
An efficient protocol was developed for the synthesis of tertiary alcohols via nucleophilic addition of organometallic compounds of s-block elements (Grignard and organolithium reagents) to esters performed in the biodegradable choline chloride/urea eutectic mixture or in water. This approach displays a broad substrate scope, with the addition reaction proceeding quickly (20 s reaction time) and cleanly, at ambient temperature and under air, straightforwardly furnishing the expected tertiary alcohols in yields of up to 98%. The practicability of the method is exemplified by the sustainable synthesis of some representative S-trityl-t-cysteine derivatives, which are a potent class of Eg5 inhibitors, also via telescoped one-pot processes. (C) 2020 Elsevier Ltd. All rights reserved.
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