Convenient Synthesis of Functionalized Cyclopropa[c]coumarin-1a-carboxylates

oleh: Olga A. Ivanova, Vladimir A. Andronov, Irina I. Levina, Alexey O. Chagarovskiy, Leonid G. Voskressensky, Igor V. Trushkov

Format: Article
Diterbitkan: MDPI AG 2018-12-01

Deskripsi

A simple method has been developed for the synthesis of cyclopropa[c]coumarins, which belong to the donor-acceptor cyclopropane family and, therefore, are promising substrates for the preparation of chromene-based fine chemicals. The method, based on the acetic acid-induced intramolecular transesterification of 2-arylcyclopropane-1,1-dicarboxylates, was found to be efficient for substrates containing hydroxy group directly attached to the aromatic ring.