1,2-Methanoadamantane: A Molecule with a Twist Bent .sigma. Bond
摘要:
The reaction of 1-(chloromethyl)-2-bromoadamantane with sodium leads to ring closure to the hitherto unknown 1,2-methanoadamantane (1). Reactivity studies of 1 provide strong evidence for the existence of a twist bent a bond.
Dihaloadamantanes: Ring Closure versus Rearrangement or Halogen-Displacement Reactions
作者:Kata Mlinarić-Majerski、Jelena Veljković、Mira Kaselj、Alan P. Marchand
DOI:10.1002/ejoc.200400121
日期:2004.7
corresponding ring-closing reactions, performed by using Na metal or alkyllithium reagents, were studied. Compound 1 reacted with Na in toluene or in tetraglyme to afford 1,2-methanoadamantane (4) as the major product. However, the corresponding reactions, when performed by using 2 and 3 as substrates, produced methyladamantane (5) or 4-methyleneprotoadamantane (6) as the major reaction products. The corresponding
Synthesis of 1,2-annulated adamantane heterocycles: structural determination studies of a bioactive cyclic sulfite
作者:Grigoris Zoidis、Dimitra Benaki、Vassilios Myrianthopoulos、Lieve Naesens、Erik De Clercq、Emmanuel Mikros、Nicolas Kolocouris
DOI:10.1016/j.tetlet.2009.03.132
日期:2009.6
The novel heterocycle 3-oxatetracyclo[5.3.1.15,9.02,5]dodecane 4 is prepared by a simple and effective method, involving synthesis of the corresponding 2-hydroxy-1-adamantanomethanol followed by its intramolecular cyclization with thionyl chloride, along with 4-oxo-adamantane-3,5,4-dioxathiane 5 in yields depending on the reaction temperature. Dioxathiane 5 was markedly active against vesicular stomatitis