A new synthesis of γ-alkylidene-γ-butyrolactones a dramatic solvent effect in the photochemical rearrangement of2,3-epoxy-1,4-cyclohexanediones
✍ Scribed by Tohru Kitamura; Takeshi Imagawa; Mituyosi Kawanisi
- Publisher
- Elsevier Science
- Year
- 1978
- Tongue
- French
- Weight
- 182 KB
- Volume
- 19
- Category
- Article
- ISSN
- 0040-4039
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✦ Synopsis
We would like to report the photo-induced rearrangements of 2-epoxy-1,4cyclohexanediones to the Y-alkylidene-Y-butyrolactones 2 or the triketones 3;
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Stereocontrolled bond-forming reactions by conjugate additions in cyclic ehl~-unsaturated carbonyl compounds are challenging areas of current importance in organic synthesis. I Direct organocoppcr addition to furan-2(5H)-one 1 is a problematic reaction. 2 The addition of simple organocuprates, such
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