The Importance of Electrostatic Interactions in the Stereoselective 1,3-Dipolar Cycloadditions of Nitrones to Chiral Allyl Ethers: An Experimental and Force Field Approach
作者:Rita Annunziata、Maurizio Benaglia、Mauro Cinquini、Franco Cozzi、Laura Raimondi
DOI:10.1002/(sici)1099-0690(199809)1998:9<1823::aid-ejoc1823>3.0.co;2-h
日期:1998.9
The 1,3-dipolar cycloaddition of formaldehyde N-benzylnitrone with β′-alkoxy- and γ-alkoxy-α,β-unsaturated esters was investigated. The stereochemical outcome of these reactions was nicely rationalized on the basis of an interpretation of the inside alkoxy theory emphasizing the electrostatic interactions in the reaction TS. The force field approach previously developed for evaluating the stereoselection
研究了甲醛N-苄基硝酮与β'-烷氧基-和γ-烷氧基-α,β-不饱和酯的1,3-偶极环加成反应。基于对内部烷氧基理论的解释,这些反应的立体化学结果很好地合理化,强调了反应 TS 中的静电相互作用。先前开发的用于评估氧化腈环加成对手性烯烃的立体选择的力场方法已成功扩展到硝酮反应。