期刊
CHEMICAL COMMUNICATIONS
卷 -, 期 22, 页码 3291-3293出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/b903878g
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资金
- EPSRC
- GlaxoSmithKline
- Engineering and Physical Sciences Research Council [EP/E018750/1] Funding Source: researchfish
- EPSRC [EP/E018750/1] Funding Source: UKRI
Dirhodium tetraacetate catalysed reaction of alpha-diazo-beta-keto- carboxylates and -phosphonates with arenecarboxamides gives 2-aryloxazole-4-carboxylates and 4-phosphonates by carbene N-H insertion and cyclodehydration; in stark contrast, dirhodium tetrakis(heptafluorobutyramide) catalysis results in a dramatic change of regioselectivity to give oxazole-5-carboxylates and 5-phosphonates.
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