Fig. 1: Counteranion-enabled regioselective anti-addition of alkynes. | Nature Communications

Fig. 1: Counteranion-enabled regioselective anti-addition of alkynes.

From: Expedient access to bora-butenolide bioisosteres by counteranion-mediated trans-hydroboration of alkynes

Fig. 1

A Exploring boron as a bioisosteric replacement for carbon in the ring. B Polysubstituted allylic alcohol-containing drugs. C Synthesis of boracycles via alkyne hydroboration. D Trans-Selective Chan alkyne reduction. E Chloride counteranion influence on Ru-catalyzed trans-hydrometallation. F Counteranion-enabled trans-selective hydroboration of alkynes.

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