A common heterocyclic compound, the benzodioxans compound, name is 2,3-Dihydrobenzo[b][1,4]dioxine-2-carboxylic acid,cas is 3663-80-7, mainly used in chemical industry, its synthesis route is as follows.
1. Preparation of ethyl 2-[1-[4-(2,3-dihydrobenzo[b][1,4]dioxin-2-carboxamido)benzyl]-1H-indazol-3-yl]acetate 2,3-Dihydrobenzo[b][1,4]dioxin-2-carboxylic acid (145 mg, 0.80 mmol) was dissolved in dichloromethane (15 mL) and N,N-dimethylformamide (0.10 mL), and in an ice bath, oxalic chloride (153 mg, 1.21 mmol) was added dropwise slowly. Upon completion of the dropwise addition, it was moved to react at room temperature for 3 hours, and concentrated under reduce pressure to obtain 2,3-dihydrobenzo[b][1,4]dioxin-2-formyl chloride as a white solid.
3663-80-7, As the rapid development of chemical substances, we look forward to future research findings about 3663-80-7
Reference£º
Patent; Zhang, Yan; Zhang, Min; Lo, Hoyin; US2014/303186; (2014); A1;,
Benzodioxan
1,4-Benzodioxane | C8H8O2 – PubChem