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A More Sustainable Isocyanide Synthesis from N-Substituted Formamides Using Phosphorus Oxychloride in the Presence of Triethylamine as Solvent.

ABSTRACT: A simple, green, and highly efficient protocol for the synthesis of isocyanides is described. The reaction involves dehydration of formamides with phosphorus oxychloride in the presence of triethylamine as solvent at 0 °C. The product isocyanides were obtained in high to excellent yields in less than 5 min. The method offers several advantages including increased synthesis speed, relatively mild conditions, and rapid access to large numbers of functionalized isocyanides, excellent purity, increased safety, and minimal reaction waste. The new approach of synthesising dehydrative isocyanides from formamides is significantly more environmentally-friendly than prior methods.

SUBMITTER: Salami SA

PROVIDER: S-EPMC9608669 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature

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A More Sustainable Isocyanide Synthesis from <i>N</i>-Substituted Formamides Using Phosphorus Oxychloride in the Presence of Triethylamine as Solvent.

Salami Sodeeq Aderotimi SA Siwe-Noundou Xavier X Krause Rui Werner Maçedo RWM

Molecules (Basel, Switzerland) 20221013 20

A simple, green, and highly efficient protocol for the synthesis of isocyanides is described. The reaction involves dehydration of formamides with phosphorus oxychloride in the presence of triethylamine as solvent at 0 °C. The product isocyanides were obtained in high to excellent yields in less than 5 min. The method offers several advantages including increased synthesis speed, relatively mild conditions, and rapid access to large numbers of functionalized isocyanides, excellent purity, increa ...[more]

PMID: 36296444

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