7392-19-0Relevant articles and documents
Amberlyst-15-catalyzed efficient cyclization of γ-and δ-unsaturated alcohols: Green synthesis of oxygen heterocycles
Singh, Soni A.,Kabiraj, Shilpi,Khandare, Reena P.,Nalawade, Shrikant P.,Upar, Kiran B.,Bhat, Sujata V.
experimental part, p. 74 - 80 (2010/03/24)
Amberlyst-15 (H+) resin catalyzes efficient cationic endo-cyclization of-and-unsaturated alcohols to yield tetrahydro-(2H)-pyrans and oxepanes. The merits of the present protocol are good yield of the products under mild conditions, simple workup, and reusability of the resin.
A PRACTICAL SYNTHESIS OF MYRCENOL BY PALLADIUM COMPLEX-CATALYZED ELIMINATION REACTION
Kumobayashi, Hidenori,Mitsuhashi, Shigeru,Akutagawa, Susumu,Ohtsuka, Sei
, p. 157 - 160 (2007/10/02)
A Palladium complex-catalyzed elimination reaction of allyl amines was studied to establish a practical process for production of myrcenol.The catalytic elimination occurred smoothly with the cationic Pd(II) complexes.Among a variety phosphorous ligands, the tetramethylene and the pentamethylene diphosphine ligands proved to be the best ligand with respects to the catalytic activity and selectivity.
Cyclisation des alcools δ-alleniques par le nitrate d'argent ou les sels mercuriques. Synthese d'α-alcenyl-2 tetrahydropyrannes
Audin, Patrick,Doutheau, Alain,Gore, Jacques
, p. 297 - 306 (2007/10/02)
Eight diversely substituted δ-allenic alcohols have been synthesized by using three different methods for the formation of the allenic linkage.When treated with silver nitrate or mercuric salts, these alcohols are transformed in fairly good yields into α-alkenyl-2 tetrahydropyrans.In addition to its regioselectivity in the formation of the heterocycle this reaction shows in certain cases a high stereoselectivity.Alcohols monosubstituted on the thermal allenic carbon lead to more than 90percent of the E product whereas the 2,4 or 2,6 disubstituted tetrahydropyrans are obtained in predominantly the Z configuration.
