Diastereoselective route to (2R,5S)- and (2S,5S)-2-methyl-1,6-dioxaspiro[4.5]decane, a pheromone component of the wasp Paravespula vulgaris
作者:Paulo H.G. Zarbin、Alfredo R.M. de Oliveira、Carlos E. Delay
DOI:10.1016/s0040-4039(03)01716-7
日期:2003.9
A diastereoselective approach to (2R,5S)- and (2S,5S)-2-methyl-1,6-dioxaspiro[4.5]decane 1 and 1a is described. The route starts with an alkylation reaction among the cyclopentanone N,N-dimethylhydrazone 6 and the chiral iodides (R)-3 or (S)-3, derived from the enantiomers of ethyl β-hydroxybutyrate, controlling the estereocenter at C-2 of the molecules. The alkylated products 7 and 7a were easily
Synthesis of a mixture of (2S,5R)- and (2S,5S)-2-methyl-1,6-dioxaspiro[4.5]decane, the odor bouquet minor components of Paravespula vulgaris (L.), from l-sorbose
作者:Isidoro Izquierdo Cubero、Maria T. Plaza Lopez-Espinosa、Naama Kari
DOI:10.1016/0008-6215(94)00320-f
日期:1995.3
Stereoselective synthesis of all isomers of 2-methyl-1,6-diaxaspiro[4.5]decane (insect pheromone) using a chiral sulfoxide auxiliary