691391-08-9Relevant academic research and scientific papers
Enantioselective and Structure-Selective Diels-Alder Reactions of Unsymmetrical Quinones Catalyzed by a Chiral Oxazaborolidinium Cation. Predictive Selection Rules
Ryu, Do Hyun,Zhou, Gang,Corey
, p. 4800 - 4802 (2004)
The chiral oxazaborolidinium cation 1 promotes Diels-Alder reactions between 2-triisopropylsilyloxy-1,3-butadiene and a number of unsymmetrical 1,4-benzoquinones in a highly enantioselective and structurally selective manner. The basis for the enantioselectivity is explained rationally in terms of a preferred type of transition-state assembly. Selection rules have been developed that allow the prediction of the principal reaction product of Diels-Alder reaction between unsymmetrical diene and quinone components. Copyright
