62460-62-2Relevant academic research and scientific papers
ABNO-Catalyzed Aerobic Oxidative Synthesis of 2-Substituted 4H-3,1-Benzoxazines and Quinazolines
Ma, Jiaqi,Wan, Yan,Hong, Chao,Li, Meichao,Hu, Xinquan,Mo, Weimin,Hu, Baoxiang,Sun, Nan,Jin, Liqun,Shen, Zhenlu
, p. 3335 - 3342 (2017/06/29)
A new transition-metal-free 9-azabicyclo[3.3.1]nonan-N-oxyl (ABNO) catalyzed aerobic oxidative synthesis of 2-substituted 4H-3,1-benzoxazines and quinazolines has been developed through cascade reaction of aldehydes with 2-aminobenzyl alcohols and 2-amino
Catalytic oxidation synthesis method of 4H-3,1-benzoxazine compound
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Paragraph 0036, (2017/08/30)
The invention discloses a catalytic oxidation synthesis method of a 4H-3,1-benzoxazine compound. The method comprises the following steps: using a 2-aminobenzyl alcohol compound and aldehyde as reaction substrates in a molar ratio of 100: (100 to 120), us
Copper-catalyzed selective benzylic C-O cyclization of N-o-tolylbenzamides: Synthesis of 4 H-3,1-benzoxazines
Li, Yan,Li, Zhongshu,Xiong, Tao,Zhang, Qian,Zhang, Xiangyang
supporting information; experimental part, p. 3522 - 3525 (2012/08/08)
A novel Selectfluor-mediated copper-catalyzed highly selective benzylic C-O cyclization for the synthesis 4H-3,1-benzoxazines is reported. The predominant selectivity for a benzylic C(sp3)-H over an aromatic C(sp 2)-H bond in N-o-tolylbenzamides is achieved.
Synthesis of 4H-3,1-benzoxazines by the reaction of o-(N-acylamino)benzyl alcohols with dast
Nisyio, Takehiko,Kurokawa, Yukiko,Narasaki, Yoshiya,Tokunaga, Tatsuhiro
, p. 247 - 254 (2007/10/03)
The treatment of o-(N-acylamino)benzyl alcohols (1) with DAST afforded the dehydrative cyclization product, 4H-3,1-benzoxazines (4) and the hydroxy replacement product, o-(N-acylamino)benzyl fluorides (5). The yields of benzoxazines (4) and fluorides (5)
Sulfur-containing heterocycles derived by reaction of N-thioacylamino alcohols with Lawesson's reagent and saponification of N-thioacylamino esters
Nishio, Takehiko,Sekiguchi, Hiroshi
, p. 203 - 212 (2007/10/03)
The treatment of 2-N-thioacylamino alcohols (1) with Lawesson's reagent [LR: 2,4-bis(p-methoxyphenyl)-1,3,2,4-dithiaphosphetane 2,4-disulfide] afforded the sulfur-containing heterocycles, 1,3-thiazolines (2) in moderate to good yields, exclusively. The sa
