Selective carbon-carbon bond formation via transition metal catalysis. 37. Controlled carbometalation. 16. Novel syntheses of .alpha.,.beta.-unsaturated cyclopentenones via allylzincation of alkynes
Selective carbon-carbon bond formation via transition metal catalysis. 37. Controlled carbometalation. 16. Novel syntheses of .alpha.,.beta.-unsaturated cyclopentenones via allylzincation of alkynes