Category: benzodioxans. Tanaka, K; Kishimoto, M; Asada, Y; Tanaka, Y; Hoshino, Y; Honda, K in [Tanaka, Kenta; Kishimoto, Mami; Asada, Yosuke; Tanaka, Yuta; Hoshino, Yujiro; Honda, Kiyoshi] Yokohama Natl Univ, Grad Sch Environm & Informat Sci, Hodogaya Ku, Yokohama, Kanagawa 2408501, Japan published Access to Electron-Deficient 2,2-Disubstituted Chromanes: A Highly Regioselective One-Pot Synthesis via an Inverse-Electron-Demand [4+2] Cycloaddition of ortho-Quinone Methides in 2019.0, Cited 76.0. The Name is 1-(4-Nitrophenyl)ethanone. Through research, I have a further understanding and discovery of 100-19-6.
We report the one-pot synthesis of 2,2-disubstituted chromanes with electron-withdrawing substituents. This reaction provides a simple yet efficient route to a wide range of electron-deficient chromanes in high yield and excellent regioselectivity. The reaction of salicylaldehyde with 1,1-disubstituted ethylenes smoothly furnishes these electron-deficient chromanes, which can be further transformed into functionalized chromanes or chromene. For example, BW683C was effectively synthesized from 5-chlorosalicylaldehyde with 4-chlorostyrene in two steps in excellent yield. The present reaction thus provides versatile access to functionalized electron-deficient chromanes and chromenes and therefore constitutes a promising tool for the synthesis of biologically and photochemically active molecules.
Category: benzodioxans. About 1-(4-Nitrophenyl)ethanone, If you have any questions, you can contact Tanaka, K; Kishimoto, M; Asada, Y; Tanaka, Y; Hoshino, Y; Honda, K or concate me.
Reference:
Benzodioxan,
,1,4-Benzodioxane | C8H8O2 – PubChem