74625-91-5Relevant academic research and scientific papers
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
One-Pot Au[III]-/Lewis Acid Catalyzed Cycloisomerization of Nitroalkynes and [3 + 3]Cycloaddition with Donor-Acceptor Cyclopropanes
Dhote, Pawan S.,Ramana, Chepuri V.
supporting information, p. 6221 - 6224 (2019/08/26)
A one-pot protocol for the synthesis of a tricyclic pseudoindoxyl scaffold from 2-nitroalkynylbenzenes, comprising of an Au(III)-catalyzed nitroalkyne cycloisomerization leading to isatogen and its [3 + 3]-cycloaddition with donor-acceptor cyclopropanes m
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.
Antitubercular Agents : Part III - Synthesis of Substituted 2-Arylisatogens
Sahasrabudhe, A. B.,Kamath, H. V.,Bapat, B. V.,Kulkarni, Sheshgiri N.
, p. 230 - 232 (2007/10/02)
A number of 2-arylisatogens (VII) have been prepared starting from o-nitroacetophenones (I).Condensation of I with different aromatic aldehydes (II) gives the corresponding o-nitrochalkones (III) which on epoxidation followed by treatment with BF3-etherat
