Tetrahedron p. 5489 - 5498 (1987)
Update date:2022-09-26
Topics:
McMurry, John E.
Matz, James R.
Kees, Kenneth L.
Total syntheses of two macrocyclic sesquiterpene hydrocarbons, humulene (1) and flexibilene (2) are discussed in detail.Both were prepared in high overall yield by titanium-induced cyclization of the appropriate keto aldehyde precursors (4 and 9, respectively), themselves obtained by coupling of the vinylic zirconium reagent 22 with pi-allylpalladiums 26 and 23.
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