The previously unknown compounds—3- (dichloromethyl) -2-nitro-6, 7-dihydro-1-benzofuran-4 (5H) -ones—have been synthesized and structurally characterized via single-crystal X-ray diffraction, 1H, 13C–1H, 1H–13C HMQC and 1H–13C HMBC NMR spectroscopy, IR, and UV spectroscopy.
Pilipenko et al. (2026) studied this question.