113334-50-2Relevant academic research and scientific papers
A new short route to chroman diols, dihydrobenzofuran diols. Characterization by 1H and 13C RMN.
David, M.,Sauleau, J.,Sauleau, A.
, p. 527 - 534 (2007/10/02)
A number of chroman diols and dihydrobenzofuran diols are efficiently obtained by oxidative cyclization of o-allylic phenols.The structure of the products was analysed by spectroscopic methods and the two structures was distinguished by their δ values in 1H and 13C RMN.Keywords - o-allylic phenols / chroman diols / dihydrobenzofuran diols / oxidative cyclization
Epoxydes α-ethyleniques et phenate de sodium: acces a des ethers phenoliques et phenols ortho-allyliques
David, Michele,Sauleau, Jean,Sauleau, Armelle
, p. 2449 - 2454 (2007/10/02)
The ring cleavage reactions of α-ethylenic epoxides by sodium phenoxide afforded a mixture of products.Problems of competitive attack by this nucleophile, at the less substituted carbon (compounds A) or at the β-ethylenic carbon atom (compounds B and C), were encountered and could be resolved by judicious choice of reaction conditions (solvents, stereochemistry of the oxiranes).The regioselectivity of the attack was dependent on the transition states, implying weak steric hindrance and a conjugation oxirane - double bond.
