Methyl group migration in the reactions of alkynyltrialkylborates

~16%

~64%

~53%

~38%

~41%

~82%

~25%

~%

~8%

~12%

~11%

~0%

~22%

~%

~0%

~7%

~73%

~66%

~55%

~57%

~0%

~25%

~25%

~47%

~0%

~0%

~0%

~0%

~%

~11%

~66%

~4%

~5%

~28%

~%

~%

~36%

~13%

~0%

~%

~50%

~87%

~%