Ding, Yuxin published the artcileEnvironmentally Benign Synthesis of Quinoline-Spiroquinazolinones by Iron-Catalyzed Dehydrogenative [4 + 2] Cycloaddition of Secondary/Tertiary Anilines and 4-Methylene-quinazolinones, Category: isoquinoline, the main research area is quinoline spiroquinazolinone green preparation; aniline methylene quinazolinone dehydrogenative cycloaddition iron catalyst.
An efficient iron-catalyzed cross-dehydrogenative coupling [4 + 2] annulation of secondary/tertiary anilines with quinazolinones to generate quinoline-spiroquinzolinones I [R1 = H, 7-Me; R2 = n-Pr, 3-ClC6H4, Bn, etc.; R3 = H, 6-Br, 7-Me, etc.; X = O, S] was reported. The reaction proceeded smoothly with a relatively broad variety of functional groups, a cheap transition metal catalyst (FeCl3), and environmentally friendly oxidant (H2O2/O2) under mild reaction conditions. Creatively, N-methylanilines were employed for the first time for the cycloaddition as both Me and methylene sources attached to the N atom of tetrahydroquinolines.
Journal of Organic Chemistry published new progress about [4+2] Cycloaddition reaction (dehydrogenative). 5961-59-1 belongs to class isoquinoline, name is 4-Methoxy-N-methylaniline, and the molecular formula is C8H11NO, Category: isoquinoline.
Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem