Steric effects compete with aryne distortion to control regioselectivities of nucleophilic additions to 3-silylarynes

~95%

~%

~%

~%

~%

~94%

~91%

~%

~%

~88%

~18%

~64%

~93%

~%

~%

~%

~%

~92%

~89%

~80%

~%

~%