Reaction of homoallylic alcohols with NaIO4/NaHSO3 reagent—synthesis of alkyl substituted tetrahydrofuran derivatives
✍ Scribed by Yoshio Okimoto; Daisuke Kikuchi; Satoshi Sakaguchi; Yasutaka Ishii
- Book ID
- 104211364
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- French
- Weight
- 63 KB
- Volume
- 41
- Category
- Article
- ISSN
- 0040-4039
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✦ Synopsis
Treatment of homoallylic alcohols with NaIO 4 /NaHSO 3 reagent in aqueous t-BuOH under mild conditions produced tetrahydrofuran derivatives together with iodohydrins in a stereospecific manner. The reaction pathways of the formation of tetrahydrofurans from trans-and cis-homoallylic alcohols were found to be different. The present method provides a new approach to various alkylated tetrahydrofuran derivatives.
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## Abstract The reaction of 1,3‐diphenyl‐2‐(phenylimino)‐3‐(ylidenemethyl‐acetate)‐1‐propanone **(5)** with trisdialkylaminophosphines **(6a,b)** in refluxing toluene afforded the new oxazaphospholene products **(7a–b)**. On the other hand, the cyclic azaphospholene adducts **8a–b** were isolated f