## 1. Introduction. the synthetic application of dienamines I [I] as Diels-Alder dienes is well documented'). The main features of their reactions with dienophiles are high reactivity and the fact that the R,N group controls the regiochemistry of the cycloaddition. For example, the use of electron-
Synthesis of 4-Ethoxycarbonyl-5-arylisoxazolidines via Regioselective Cycloaddition.
β Scribed by Richard S. Jones; Jeffrey Sutherland; Donald F. Weaver
- Publisher
- John Wiley and Sons
- Year
- 2003
- Weight
- 9 KB
- Volume
- 34
- Category
- Article
- ISSN
- 0931-7597
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## Abstract magnified image A series of novel dispiro[oxindoleβfused pyrimidine]pyrrolidine ring systems **4aβf** were synthesized by the regioselective 1,3βdipolar cycloaddition reaction of the 2βarylmethyleneβ7βbenzylβ9β(benzylidene)tetrahydropyrido[4,3β__d__]thiazolo[3,2β__a__]pyrimidinβ3βones