Back to Search
Start Over
ChemInform Abstract: (2 + 2) Photocycloaddition Reaction of 5-Arylfuran-2,3-diones to Trimethylsilyloxyethylenes
- Source :
- ChemInform. 28
- Publication Year :
- 2010
- Publisher :
- Wiley, 2010.
-
Abstract
- The photocycloaddition reaction of 5-phenylfuran-2,3-dione (la) to 2-trimethylsilyloxybutadiene proceeded in a [2s+2s] manner with high regio- and stereo-selectivities to give a 2-oxabicyclo[3.2.0]heptane-3,4-dione 2 with 7-endo-OTMS-7-exo-vinyl stereochemistry. 5-Arylfuran-2,3-diones (1a-e) on similar photocycloaddition with l-phenyl-l-trimethylsilyloxyethylene gave the corresponding 7-aryl derivatives 3a-e with the same regio- and stereo-chemistries in good yields. This stereochemical result of O-endo selectivity is consistent with the prediction obtained from the stereo-selection rule proposed for the enone-olefin photocycloaddition reaction. The reaction provides an efficient method for the synthesis of poly-functionalized cyclobutane derivatives.
Details
- ISSN :
- 09317597
- Volume :
- 28
- Database :
- OpenAIRE
- Journal :
- ChemInform
- Accession number :
- edsair.doi...........f0f37e39762c8c4f0fbb5e9177d06bea