1-Aminovinylphosphonate Esters as Substrates for the Diels-Alder Reaction: First Synthetic and Theoretical Study

被引:3
作者
Mercedes Jimenez-Andreu, M. [1 ]
Bueno-Moron, Jorge [1 ]
Sayago, Francisco J. [1 ]
Cativiela, Carlos [1 ]
Tejero, Tomas [1 ]
Merino, Pedro [2 ]
机构
[1] Univ Zaragoza, CSIC, ISQCH, Dept Quim Organ, E-50009 Zaragoza, Spain
[2] Univ Zaragoza, Inst Biocomputac & Fis Sistemas Complejos BIFI, E-50009 Zaragoza, Spain
关键词
Cycloaddition; Olefination; Phosphorous compounds; Density functional calculations; Strained molecules; ANION-BINDING CATALYSIS; ALPHA-AMINO-ACID; ENANTIOSELECTIVE HYDROPHOSPHONYLATION; STEREOSELECTIVE-SYNTHESIS; METAL-FREE; 1,3-DIPOLAR CYCLOADDITION; N-TOSYLHYDRAZONES; RECENT PROGRESS; DERIVATIVES; ROUTE;
D O I
10.1002/ejoc.201801633
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The Diels-Alder reaction of 1-aminovinylphosphonate esters has been studied for the first time as a suitable procedure leading to quaternary carbocyclic alpha-aminophosphonates. The reaction is influenced by steric effects at the phosphonate functionality (bulky groups hinder the reaction) and electronic effects at the amino group (electron-withdrawing substituents increase the reaction rate). The exo/endo ratio is constant, and no influence of the solvent is observed. The experimental results have been rationalized by DFT methods.
引用
收藏
页码:1268 / 1272
页数:5
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