17819-51-1Relevant academic research and scientific papers
Rhodium(II)-Catalyzed Formal [3 + 2] Cycloaddition of N-Sulfonyl-1,2,3-triazoles with Isoxazoles: Entry to Polysubstituted 3-Aminopyrroles
Lei, Xiaoqiang,Li, Longbo,He, Yu-Peng,Tang, Yefeng
supporting information, p. 5224 - 5227 (2015/11/18)
A novel rhodium(II)-catalyzed formal [3 + 2] cycloaddition of N-sulfonyl-1,2,3-triazoles with isoxazoles has been achieved that provides an efficient method for the synthesis of polysubstituted 3-aminopyrrole derivatives. An operationally simple one-pot synthesis of the titled compounds from terminal alkynes, tosyl azide, and isoxazoles was also developed. The presented reaction affords an illustrative example of employing 1,2,3-triazoles as the [2C]-component in relevant cycloaddition reactions.
Efficient and regioselective one-pot synthesis of 3-substituted and 3,5-disubstituted isoxazoles
Tang, Shibing,He, Jinmei,Sun, Yongquan,He, Liuer,She, Xuegong
supporting information; experimental part, p. 3982 - 3985 (2009/12/03)
(Figure Presented) A series of 3-substituted and 3,5-disubstituted isoxazoles have been efficiently synthesized in moderate to excellent yields by the reaction of N-hydroxyl-4-toluenesulfonamide with α,β-unsaturated aldehydes/ketones. This novel strategy is associated with readily available starting materials, mild conditions, high regioselectivity, and wide scope.
Ruthenium-catalyzed cycloaddition of nitrile oxides and alkynes: Practical synthesis of isoxazoles
Grecian, Scott,Fokin, Valery V.
supporting information; experimental part, p. 8285 - 8287 (2009/04/13)
(Chemical Equation Presented) 3,4-Disubstituted and 3,4,5-trisubstituted isoxazoles have been formed from alkynes and nitrile oxides in a ruthenium(II)-catalyzed process (see scheme; cod=cycloocta-l,5-diene, Cp=C5Me5). These reaction
