4416-71-1Relevant articles and documents
Enantioselective dearomative [3+2] annulation of 5-amino-isoxazoles with quinone monoimines
Liu, Hui,Yan, Yingkun,Zhang, Jiayan,Liu, Min,Cheng, Shaobing,Wang, Zhouyu,Zhang, Xiaomei
supporting information, p. 13591 - 13594 (2020/11/17)
The first enantioselective dearomative [3+2] annulation of 5-amino-isoxazoles with quinone monoimines was realized using a chiral phosphoric acid as catalyst. Various novel (bridged) isoxazoline fused dihydrobenzofurans bearing two continuous quaternary stereocenters were achieved in moderate to good yields (up to 94%) with moderate to good enantioselectivities (up to 98% ee). The absolute configurations of two products were assigned by X-ray crystal structural analyses and a plausible reaction mechanism was proposed. This journal is
Efficient regioselective synthesis of 4- and 5-substituted isoxazoles under thermal and microwave conditions
Lasri, Jamal,Mukhopadhyay, Suman,Charmier, M. Adilia Januario
experimental part, p. 1385 - 1389 (2009/04/10)
(Chemical Equation Presented) The [2+3] cycloaddition reaction between nitrile oxides 2 and the captodative olefins 1 or the methyl crotonate derivatives 4 is regioselective and leads to the formation of the 5-substituted amino-isoxazole 3 or the 4-substi