Tetrahedron Letters p. 3160 - 3163 (2017)
Update date:2022-08-11
Topics:
Kantin, Grigory
Chupakhin, Evgeny
Dar'in, Dmitry
Krasavin, Mikhail
Literature examples illustrating the use of oxalyl chloride to prepare dicarboxylic acid anhydrides are surprisingly limited. At the same time, we have discovered a method involving the use of this readily available reagent which allowed the preparation of novel cyclic anhydrides where other, more conventional, methods had failed. Herein, we demonstrate that the method is applicable to a wide diversity of substrates, delivers good to excellent yields of cyclic anhydrides without chromatographic purification and can be considered a synthetic tool of choice whenever dicarboxylic acid cyclodehydration is required.
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