Preparation of 3, 5-disubstituted pyrazoles and isoxazoles from terminal alkynes, aldehydes, hydrazines, and hydroxylamine

~%

~%

~%

~%

~%

~%

~%

~%

~%

~%

~%

~%

~%

~%

~%

~%

~%

~%

~%

~%

~%