Synthetic studies towards prismanes: 1,4-Bishomo-[6]-prismane (“garudane”)
作者:Goverdhan Mehta、S. Padma
DOI:10.1016/s0040-4020(01)81937-2
日期:1991.9
4-bishomohexaprismane 6, the true, face-to-face, heptacyclic dimer of norbornadiene ia delineated. In the initial phase, the readily available norborneno-p-benzoquinone 13 was transformed into the bishomoseco[7]-prismane dione 11 in three steps involving stereoselective 4+2 cycloaddition, regio- and stereoselective Ti3+ reduction of the enedione moiety and intramolecular 2+2-photocycloaddition. The versatile
Generation and characterization of tricyclodecatrienone, a norbornene annulated cyclopentadienone
作者:Jie Zhu、Antonius J.H. Klunder、Binne Zwanenburg
DOI:10.1016/s0040-4039(00)73697-5
日期:1993.5
An effective synthesis of endo-6-bromo-tricyclo[5.2.1.02,6]deca-4,8-dien-3-one is realized starting from carboxylic acid applying Barton's halodecarboxylation methodology. Mild basic treatment of leads to quantitative formation of tricyclo[5.2.1.02,6]decatrienone which rapidly undergoes either regioselective nucleophilic addition or Diels-Alder cyclization depending on the applied reaction conditions
Synthesis of 6-functionalized tricyclodecadienones using Barton's radical decarboxylation reaction. Generation of tricyclo[5.2.1.02,6]decatrienone, a norbornene annulated cyclopentadienone
作者:Jie Zhu、Antonius J.H Klunder、Binne Zwanenburg
DOI:10.1016/0040-4020(95)98707-o
日期:1995.4
from carboxylic acid has been accomplished whereby the chemical scope of the tricyclodecadienone system as a synthetic equivalent of cyclopentadienone has been expanded. Bridgehead bromide gives upon treatment with base access to norborneneannulatedcyclopentadienone which rapidly undergoes either regioselective nucleophilic addition or Diels-Alder cyclization depending on the applied reaction conditions