MOESM1 of A facile and one-pot synthesis of new tetrahydrobenzo[b]pyrans in water under microwave irradiation

Additional file 1. Additional instrumental details, spectral data and details of product yields. Figure S1: Selected HMBC interactions of –CH & a (1–6) protons of 4g. Figure S2: 1H and 13C chemical shift of compound 4g. Table S1: Effect of various conditions for the synthesis of benzopyrans in presence of several catalysts.