147248-14-4Relevant academic research and scientific papers
Transition-metal free N-arylation of cyanamides by diaryliodonium triflates in aqueous media
Li, Jihui,Zheng, Xinyi,Li, Wei,Zhou, Wei,Zhu, Wen,Zhang, Yucang
supporting information, p. 77 - 80 (2016/01/12)
An operationally simple protocol is established for the synthesis of disubstituted cyanamides through the transition-metal free N-arylation of cyanamides by diaryliodonium triflates in aqueous media. Both alkyl and aryl cyanamides are well compatible with the mild reaction conditions. The one-pot synthesis of ureas is also possible through sequential arylation and hydrolysis of cyanamides, diaryliodonium triflates and H2O with good yields.
Copper-catalyzed one-pot synthesis of unsymmetrical arylurea derivatives via tandem reaction of diaryliodonium salts with N -arylcyanamide
Li, Pengfei,Cheng, Guolin,Zhang, Hong,Xu, Xianxiang,Gao, Jingyuan,Cui, Xiuling
, p. 8156 - 8162 (2015/03/18)
An efficient "one-pot" approach to multiple substituted ureas from N-arylcyanamide and diaryliodonium salts has been presented. The two-step procedure involved the weak base-promoted chemoselective arylation of secondary amines with diaryliodonium and Cu-catalyzed nucleophilic addition of N-arylcyanamide with second diaryliodonium. The diverse unsymmetrical arylureas were obtained in up to 91% yield for 29 examples.
N-SUBSTITUTED HETEROCYCLIC DERIVATIVES USEFUL IN THE TREATMENT OF CARDIOVASCULAR DISORDERS
-
, (2008/06/13)
The present invention relates to N-substituted heterocyclic derivatives of formula: STR1 processes for their preparation, and pharmaceutical compositions which contain them. The compounds according to the invention are non-peptide compounds which oppose the action of angiotensin II. The compounds according to the invention are thus useful in the treatment of cardiovascular disorders such as hypertension and heart failure.
