title: A new ring expansion for a chiral hexahydroazulene skeleton possessing an angular methyl group.
abstract: A new synthetic route for a pseudoguaiane ring system is described. The synthesis features an Ireland-Claisen rearrangement for constructing the trans-fused ring system, followed by a new ring expansion to yield a bicyclo[5.3.0]decane ring system possessing an angular methyl group.
authors: Laboratory of Organic Chemistry, Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya 464-8601, Japan. madachi@agr.nagoya-u.ac.jp
authors: Masaatsu
authors: M
authors: Adachi
authors: Takema
authors: T
authors: Komada
authors: Toshio
authors: T
authors: Nishikawa
mesh_terms: D052176:Azulenes / Q000737:chemistry*; D001643:Bridged Bicyclo Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D003500:Cyclization; D015394:Molecular Structure; D013237:Stereoisomerism
chemical_list: D052176:Azulenes; D001643:Bridged Bicyclo Compounds; C516925:bicyclo(5.3.0)decane