Futagawa, Tohru; Nishiyama, Norio; Tai, Akira; Okuyama, Tadashi; Sugimura, Takashi published the artcile< Preparation of gem-dimethylcyclopropane-fused compounds through sigmatropic rearrangements. On/off-switching of the tautomerization of 3,4-homotropylidene by steric hindrance>, Related Products of 112-63-0, the main research area is gem dimethylcyclopropane fused sigmatropic rearrangement switching tautomerization homotropylidene; steric hindrance valence tautomerization.
Cyclopropanation of 4,8,8-trimethylcycloheptatriene having an ether function at the 3-position by unsubstituted carbenoid addition resulted in a complex mixture mainly due to quick valence tautomerization of the produced 3,4-homotropylidene analog during the reaction. Dihalocarbene addition to the same substrate proceeded exclusively at the 3,4-position to give an adduct, where the tautomerization process was interrupted by steric hindrance caused by the halogen substituents. Removal of the halogen atoms by reduction promotes the tautomerization to give a gem-dimethylcyclopropane-fused product. Stereospecificity of the tautomerization was also demonstrated by obtaining the product in an optically pure state.
Tetrahedron published new progress about AM1 (molecular orbital method). 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Related Products of 112-63-0.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics