83266-40-4Relevant academic research and scientific papers
I2-Promoted Intramolecular Oxidative Cyclization of Butenyl Anilines: A Facile Route to Benzo[b]azepines
An, Zhenyu,Ren, Yi,Liu, Yafeng,Yan, Rulong
supporting information, p. 2614 - 2617 (2021/08/06)
A metal-free approach for the synthesis of seven-membered N-heterocycles has been developed by the I2-promoted intramolecular cross-coupling/annulation of butenyl anilines. This cyclization reaction involves C?H activation and C?C bond formation and exhibits good functional group tolerance. A series of benzo[b]azepine derivatives are obtained in moderate to good yields.
Construction of N-Alkyl- and N-Arylaziridines from Unprotected Amines via C-H Oxidative Amination Strategy
Yu, Yang,Li, Meijuan,Zhang, Yong,Liu, Yonghai,Shi, Lei,Wang, Wei,Li, Hao
supporting information, p. 904 - 907 (2019/05/16)
A copper-promoted intramolecular C-H oxidative amination reaction between secondary amine (N-H) and C(sp3)-H at the benzylic position of azaarenes or α-position of ketones for the synthesis of aziridine derivatives has been developed. Moreover,
A convenient synthesis of novel 1,3,4-triaryl-3,4-dihydropyrimidin-2(1H)- ones by cyclization of aromatic isocyanates with β-arylamino-1- phenylpropan-1-ones
Xue, Na,Lu, Xiuyang,Hu, Yongzhou
, p. 1095 - 1098 (2008/12/20)
(Chemical Equation Presented) A simple one-step method for preparation of novel 1,3,4-triaryl-3,4-dihydropyrimidin-2(1H)-ones has been developed by reaction of aromatic isocyanates with β-arylamino-1-phenylpropan-1-ones in refluxing toluene in the presence of KHSO4 and HCl.
Synthesis of Heterocyclic Compounds: Part XXVI - 3,6-Diaryl-3,4-dihydro-1,3,2-oxazaphosphorin-2-oxides
Modak, A. S.,Gogte, V. N.,Tilak, B. D.
, p. 907 - 913 (2007/10/02)
3,4-Dihydro-1,3,2-oxazaphosphorin-2-oxides (4a-r) have been prepared by the interaction of aryl β-aryl/alkylaminoethyl ketones (3a-r) with POCl3/Et3N.Various reactions of these compounds, which represent a new ring system, are reported.Few of these compou
Synthesis and Reactions of 3,6-Diaryl-3,4-dihydro-1,3,2-oxazaphosphorin-2-oxides
Tilak, B. D.,Gogte, V.N.,Modak, A.S.
, p. 414 - 415 (2007/10/02)
Aryl β-arylaminoethyl ketones (1), when reacted with phosphorus oxychloride followed by treatment with triethylamine, afford 3,6-diaryl-2-chloro-3,4-dihydro-1,3,2-oxazaphosphorin-2-oxides (3a-u), a hitherto unreported ring system.The oxazaphosphorin (3q), viz. 2-chloro-3-m-anisyl-6-phenyl-3,4-dihydro-1,3,2-oxazaphosphorin, is converted into 7-methoxy-4-phenylquinoline on keeping.This transformation is specific to 3q since other oxazaphosphorins fail to give the quinoline derivative.
