132475-60-6Relevant articles and documents
Cobalt-Catalyzed, Directed Intermolecular C-H Bond Functionalization for Multiheteroatom Heterocycle Synthesis: The Case of Benzotriazine
Wu, Weiping,Fan, Shuaixin,Li, Tielei,Fang, Lili,Chu, Benfa,Zhu, Jin
supporting information, p. 5652 - 5657 (2021/08/01)
Transition-metal-catalyzed, directed intermolecular C-H bond functionalization is synthetically useful but heavily underexplored in multiheteroatom heterocycle synthesis. Herein we report a cobalt catalytic method for the formation of a three-nitrogen-bearing benzotriazine scaffold via the coupling of arylhydrazine and oxadiazolone. This synthetic protocol features a low-cost base metal catalyst, a maximum number of heteroatoms built into a heterocycle, a distinct synthetic logic for benzotriazines, a superior step economy, and a broad substrate scope.
A cascade process for directly converting nitriles (RCN) to cyanamides (RNHCN) via SO2F2-activated Tiemann rearrangement
Zhang, Guofu,Zhao, Yiyong,Ding, Chengrong
supporting information, p. 7684 - 7688 (2019/08/30)
A simple, mild and practical process for the direct conversion of nitriles to cyanamides was newly discovered and exhibited a wide substrate scope as well as great functional group-tolerability (36 examples). In this efficient strategy, the in situ generated amidoximes obtained from the reaction of nitriles with hydroxylamine subsequently underwent Tiemann rearrangement, producing the corresponding cyanamides with great isolated yields under SO2F2. Additionally, the control experiments reportedly shed light on the tentative mechanism involved in the formation and elimination of the key intermediate: a sulfonyl ester.
TiO2-Nanoparticles Catalyzed Synthesis of New Trifluoromethyl-4,5-dihydro-1,2,4-oxadiazoles and Trifluoromethyl-1,2,4-oxadiazoles
Darehkordi, Ali,Ramezani, Mahin,Rahmani, Fariba
, p. 1702 - 1708 (2018/05/30)
Synthesis of a new series of trifluoromethyl-4,5-dihydro-1,2,4-oxadiazoles and trifluoromethyl-1,2,4-oxadiazoles have been described by utilizing the reactions between amidoximes and trifluoroacetimidoyl chlorides. Trifluoromethyl-4,5-dihydro-1,2,4-oxadia