?-Chlor-nitrone V: Substitutionsreaktionen an Olefin- und Benzolderivaten. Eine Methode zur Darstellung von ?,?-un-ges�ttigten und ?- arylsubstituierten Aldehyden. Stereospezifische Bildung von tetra-alkylsubstituierten Olefindoppelbindungen. �ber synthetische Methoden, 9. (vorl�ufige) Mitteilung
作者:Shimon Shatzmiller、Peter Gygax、David Hall、Albert Eschenmoser
DOI:10.1002/hlca.19730560836
日期:1973.12.12
The Ag+-induced α-chloro-aldonitrone/olefin reaction in polar solvents can proceed by substitution, thereby providing a method for the preparation of β, γ-unsaturated aldehydes. Positional as well as configurational retention of the olefinic double bond are mechanistically significant and preparatively useful characteristics of this process. Substitution also occurs with great ease at nucleophilic
可以通过取代进行在极性溶剂中的由Ag +诱导的α-氯-亚硝基硝基/烯烃反应,从而提供了一种制备β,γ-不饱和醛的方法。烯属双键的位置和构型保留是该方法在机械上重要的和制备上有用的特征。亲核芳香核也很容易取代。这为某些β-芳基醛的制备提供了简单的途径。