176040-89-4Relevant academic research and scientific papers
Cationic cyclization of (α-furyl)- and (β-furyl)methyl derivatives of (±)-limonene
Moiseenkov,Lozanova,Surkova,Buevich,Veselovsky
, p. 523 - 527 (1997)
Cationic cyclization of the α- and β-furylmethyl (±)-limonene derivatives to give tricyclic furanoterpenoids, related to the metabolites of some marine organisms, was studied.
Phase transfer catalysis (ptc): a convenient tool for generation and reactions of allyl sulphonyl carbanions
Jonczyk, Andrzej,Radwan-Pytlewski, Tadeusz
, p. 111 - 119 (2007/10/03)
Allyl sulphones la-d or le react with alkyl halides (RX) in the presence of concentrated aqueous NaOH solution and tetrabutylammonium bromide (TBAB) as a catalyst to give, with high yields, mono(2a-d) or di-alkylated (3e) products, respectively. Under the same conditions sulphone If forms mixtures of the products, the composition of which depends on the structure of RX and the RX:lf ratio. With a,cu-dibromo alkanes, sulphones la,d-f give rise to cyclic products (7a,d-f) with low to excellent yields. With 4-nitrofluorobenzene (in solid NaOH-DMSO system) or vinyl acetate (by PTC) sulphone la affords the products 2al3 and 9a, respectively.
