Jia, Qianfa; Lan, Yunfei; Ye, Xin; Lin, Yinhe; Ren, Qiao published the artcile< Direct access to multi-functionalized benzenes via [4 + 2] annulation of α-cyano-β-methylenones and α,β-unsaturated aldehydes>, HPLC of Formula: 21667-62-9 , the main research area is cyano butanone propenal metal free regioselective cycloaddition reaction; benzene preparation.
An efficient [4 + 2] benzannulation of α-cyano-β-methylenones and α,β-unsaturated aldehydes was achieved under metal-free reaction conditions selectively delivering a wide range of polyfunctional benzenes in high yields resp. (up to 94% yield).
RSC Advances published new progress about [4+2] Cycloaddition reaction (regioselective). 21667-62-9 belongs to class nitriles-buliding-blocks, and the molecular formula is C9H6ClNO, HPLC of Formula: 21667-62-9 .
Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts