1-芳基-2,2,2-三氟乙酮肟与四氮化四硫的反应:5-芳基-5-三氟甲基-4 H -1,3,2,4,6-二硫三嗪和1-芳基-2的新颖合成, 2,2-三氟-乙炔基氨基亚磺酰胺
摘要:
1-芳基-2,2,2-三氟乙酮肟与四氮化四硫(S 4 N 4)在甲苯中的反应在回流下产生5-芳基-5-三氟甲基-4 H -1,3,2,4,6- dithiatriazines 2,1-芳基2,2,2- trifluoroethanonyliden-aminosulfenamides 3和0-37%,7-53%的硫,和2-41%的收率,分别。在苯并偶氮二异丁腈存在下于80°下用氢化三丁基锡处理2,得到的3收率极高。
Stereoselective Transformations of α-Trifluoromethylated Ketoximes to Optically Active Amines by Enzyme-Nanometal Cocatalysis: Synthesis of (<i>S</i>)-Inhibitor of Phenylethanolamine N-Methyltransferase
作者:Guilin Cheng、Qi Wu、Zeyu Shang、Xinhua Liang、Xianfu Lin
DOI:10.1002/cctc.201402114
日期:2014.7
One‐pot cascade synthesis of opticallyactive α‐trifluoromethylated amines directly from ketoximes was accomplished with the use of Candida antarctica lipase B and catalysts prepared by atomic layer deposition (ALD). Compared to the commercial palladium catalyst, the ALD‐prepared catalysts showed much higher activity and afforded various α‐trifluoromethylated amides in good yields and with high enantioselectivity