Balme, Genevieve published the artcileTotal synthesis of the triquinane marine sesquiterpene (±)-Δ9(12)-capnellene using a palladium-catalyzed bis-cyclization step, SDS of cas: 69361-41-7, the publication is Tetrahedron (1994), 50(2), 403-14, database is CAplus.
Details of a novel palladium catalyzed cyclization approach to linear condensed cyclopentanoids are reported. The mechanism of this reaction which involves a δ-ethylenic (or δ-acetylenic) carbon nucleophile and an unsaturated halide is a “Wacker type process” i.e., an attack by the nucleophile onto the unsaturation electrophilically activated by an organopalladium(II) species. In this paper, the authors will show the intramol. version of this reaction which then leads to the tricyclic framework of the sesquiterpene (±)-Δ9(12)-capnellene (I; R = Me), the total synthesis of which is described. Thus, cyclopentene II was prepared and underwent palladium-catalyzed cyclization to give triquinane I (R = CO2Me) which gave I (R = Me) in 2 steps.
Tetrahedron published new progress about 69361-41-7. 69361-41-7 belongs to bromides-buliding-blocks, auxiliary class PROTAC Linker,Aliphatic Linker, name is (4-Bromobut-1-yn-1-yl)trimethylsilane, and the molecular formula is C7H13BrSi, SDS of cas: 69361-41-7.
Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary