Cyclo- and hydrodimerization of α,β-unsaturated ketones promoted by samarium diiodide
✍ Scribed by Cabrera, Armando; Le Lagadec, Ronan; Sharma, Pankaj; Arias, José Luis; Toscano, Rubén Alfredo; Velasco, Luis; Gaviño, Rubén; Alvarez, Cecilio; Salmón, Manuel
- Book ID
- 118744404
- Publisher
- Royal Society of Chemistry
- Year
- 1998
- Weight
- 362 KB
- Volume
- 21
- Category
- Article
- ISSN
- 1472-7781
- DOI
- 10.1039/A804269A
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Hydrodimerization of Cyclic α,β Unsaturated Ketones Promoted by Samarium Iodide. -The intermolecular coupling of cyclic unsaturated ketones by SmI 2 /THF and SmI 2 /HMPA/THF systems, resp., affords symmetrical hydrodimers in a short reaction time and in good yields. The use of HMPA improves the yie
## Abstract The ^1^H and ^13^C NMR chemical shift assignments of hydroxycyclopentylpropenone derivatives, prepared by a highly selective reaction between samarium(II) iodide and unsaturated ketones, are described. Two‐dimensional shift‐correlated experiments (COSY, HMBC, HMQC, NOESY) were used to a