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|Title:||Synthesis of chiral butenolides using amino-thiocarbamate-catalyzed asymmetric bromolactonization|
|Source:||Tan, C.K., Er, J.C., Yeung, Y.-Y. (2014-02-05). Synthesis of chiral butenolides using amino-thiocarbamate-catalyzed asymmetric bromolactonization. Tetrahedron Letters 55 (6) : 1243-1246. ScholarBank@NUS Repository. https://doi.org/10.1016/j.tetlet.2014.01.009|
|Abstract:||The asymmetric cyclization of 4,4-disubstituted 3-butenoic acids is studied. Amino-thiocarbamates are used as the catalysts and N-bromosuccinimide is used as the stoichiometric halogen source. The resulting γ-butanolide products are readily converted into the corresponding γ-butenolides (up to 58% ee) derivatives in one-pot. © 2014 Elsevier Ltd. All rights reserved.|
|Source Title:||Tetrahedron Letters|
|Appears in Collections:||Staff Publications|
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