19718-35-5Relevant articles and documents
B2N2-Dibenzo[a,e]pentalenes: Effect of the BN Orientation Pattern on Antiaromaticity and Optoelectronic Properties
Wang, Xiao-Ye,Narita, Akimitsu,Feng, Xinliang,Müllen, Klaus
, p. 7668 - 7671 (2015)
Two BN units were embedded in dibenzo[a,e]pentalene with different orientation patterns, which significantly modulated its antiaromaticity and optoelectronic properties. Importantly, the vital role of the BN orientation in conjugated molecules with more t
Visible-light-promoted decarboxylative addition cyclization of: N -aryl glycines and azobenzenes to access 1,2,4-triazolidines
Ma, Ben,Qi, Yanfang,Song, Menghui,Wang, Xi-Cun,Yang, Jingya,Zhou, Hongyan
supporting information, p. 5806 - 5811 (2021/08/23)
Methods for the synthesis of 1,2,4-triazolidines are scarce. Herein, we report a visible-light-promoted decarboxylative addition cyclization of N-aryl glycines and azobenzenes to access such important compounds. Using commercially available methylene blue (MB) as an organic photocatalyst, the reaction proceeded smoothly in the absence of transition-metal catalysts at ambient temperature, affording the corresponding products, 1,2,4-triaryl 1,2,4-triazolidines, in good to excellent yields. This work demonstrates a new synthetic application of readily available azobenenes and provides a novel strategy for constructing 1,2,4-triazolidines.
Tin-mediated reduction of azoarenes to hydrazoarenes using hydrazine hydrate
Dinesh,Abiraj,Srinivasa,Gowda, D. Channe
, p. 422 - 423 (2007/10/03)
The controlled reduction of azoarenes to the corresponding hydrazoarenes using tin and hydrazine hydrate is reported. The reduction proceeds smoothly at room temperature furnishing the hydrazoarene in excellent yield without the formation of an aniline.
