Fu, Rugang published the artcileDirect Synthesis of 3-Coumaranones with Calcium Carbide as an Acetylene Source, HPLC of Formula: 156089-67-7, the main research area is salicylaldehyde calcium carbide one pot cycloaddition reaction; methyl vinylbenzofuranone preparation.
A synthesis method for the construction of 3-coumaranones from the reaction of two mols., calcium carbide and salicylaldehydes was reported. Various 2-methyl-2-vinylbenzofuran-3(2H)-ones was obtained in moderate yields in the absence of a metal catalyst. This involved widely available starting materials, an inexpensive and easy-to-handle alkyne source, and a cost-efficient route. The reaction mechanism was verified by d. functional theory calculations of possible intermediates and corresponding transition states.
Organic Letters published new progress about Cycloaddition reaction. 156089-67-7 belongs to class bromides-buliding-blocks, name is 4,5-Dibromo-2-hydroxybenzaldehyde, and the molecular formula is C7H4Br2O2, HPLC of Formula: 156089-67-7.
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary