The oxidative annulation of tertiary benzyl alcohols with internal alkynes using an (electron-deficient ホキ5-cyclopentadienyl)rhodium(III) catalyst under ambient conditions.
英文:
The oxidative annulation of tertiary benzyl alcohols with internal alkynes using an (electron-deficient ホキ5-cyclopentadienyl)rhodium(III) catalyst under ambient conditions.
It was established that a dinuclear (electron-deficient ホキ5-cyclopentadienyl)rhodium(III) complex catalyzes the oxidative annulation of tertiary benzyl alcs. with internal alkynes via sp2 C-H/O-H functionalization under ambient conditions (at room temp. under air) to give substituted isochromenes in good yields. The preference for annulation across electron-rich substrates over electron-deficient substrates was obsd. using this electron-deficient rhodium(III) complex. [on SciFinder(R)]