74625-91-5Relevant articles and documents
AuBr3-catalyzed cyclization of o-(alkynyl)nitrobenzenes. Efficient synthesis of isatogens and anthranils
Asao, Naoki,Sato, Kenichiro,Yamamoto, Yoshinori
, p. 5675 - 5677 (2003)
The cyclization of o-(arylalkynyl)nitrobenzenes was catalyzed by AuBr3 to produce the corresponding isatogens in good to high yields together with small amounts of anthranils. On the other hand, anthranils were obtained selectively when the AuB
C-H alkenylation/cyclization and sulfamidation of 2-phenylisatogens using: N -oxide as a directing group
Guo, Lingmei,Tang, Baolan,Nie, Ruifang,Liu, Yanzhao,Lv, Shan,Wang, Huijing,Guo, Li,Hai, Li,Wu, Yong
supporting information, p. 10623 - 10626 (2019/09/06)
The first example of transition-metal-catalyzed C-H activations of 2-phenylisatogens with alkynes and sulfonyl azides has been developed using N-oxide as the directing group. Ru(ii)-Catalyzed C-H alkenylation/cyclization and Ir(iii)-catalyzed direct C-H sulfamidation proceeded with good yields and excellent functional group tolerance. Importantly, these two transformations provided straightforward routes for the synthesis of indol-3-one derivatives and sulfamidated 2-phenylisatogens respectively, which might be of considerable bioactivities.
