64097-92-3Relevant articles and documents
Photocatalyzed Intramolecular [2+2] Cycloaddition of N-Alkyl-N-(2-(1-arylvinyl)aryl)cinnamamides
de Souza, Wanderson C.,Matsuo, Bianca T.,Matos, Priscilla M.,Correia, José Tiago M.,Santos, Marilia S.,K?nig, Burkhard,Paix?o, Marcio W.
supporting information, p. 3722 - 3728 (2021/02/03)
N-Alkyl-N-(2-(1-arylvinyl)aryl)cinnamamides are converted into natural product inspired scaffolds via iridium photocatalyzed intramolecular [2+2] photocycloaddition. The protocol has a broad substrate scope, whilst operating under mild reaction conditions. Tethering four components forming a trisubstituted cyclobutane core builds rapidly high molecular complexity. Our approach allows the design and synthesis of a variety of tetrahydrocyclobuta[c]quinolin-3(1H)-ones, in yields ranging between 20–99 %, and with excellent regio- and diastereoselectivity. Moreover, it was demonstrated that the intramolecular [2+2]-cycloaddition of 1,7-enynes—after fragmentation of the cyclobutane ring—leads to enyne-metathesis-like products.
INDENOACRIDINE COMPOUND AND APPLICATIONS THEREOF
-
Paragraph 0101-0104, (2021/08/04)
PROBLEM TO BE SOLVED: To provide: a novel indenoacridine compound better in stability against redox and in hole transportability than known conventional compounds; and an organic EL element based on the indenoacridine compound. SOLUTION: An indenoacridine compound represented by general formula (1) or (2) is used. SELECTED DRAWING: None COPYRIGHT: (C)2021,JPOandINPIT
tert-Butyl Hydroperoxide-Initiated Radical Cyclization of 1-(Allyloxy)-2-(1-Arylvinyl)Benzenes with Sulfinic Acids to Access Sulfonated Benzoxepines
Kuang, Kaimo,Wu, Meixia,Wu, Sixin,Xia, Ziqin,Xu, Qiankun,Zhang, Man,Zhou, Nengneng
supporting information, p. 3491 - 3495 (2021/06/28)
A tert-butyl hydroperoxide-initiated radical cyclization of 1-(allyloxy)-2-(1-arylvinyl)benzenes with sulfinic acids for the construction of sulfonated benzoxepines is developed. This reaction involves a radical pathway and offers a straightforward route to the formation of seven-membered ring via sulfonylation/cyclization process. This methodology features mild reaction conditions, a broad substrate scope and good functional group tolerance. (Figure presented.).