Synthesis of halothiophene S, C-ylides and the corresponding 1, 4-oxathiocines
O Meth-Cohn, E Vuorinen…
Index: Meth-Cohn, O.; Vourinen, E.; Modro, T. A. Journal of Organic Chemistry, 1989 , vol. 54, # 20 p. 4822 - 4827
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Citation Number: 9
Abstract
2 stable when stored in a freezer, but some of them slowly decompose at room temperature. The structures of products 2a-e were determined by their IR and NMFt (lH, 13C) spectroscopy, mass spectrometry, and elemental analy~ is.~ Infrared spectroscopy demonstrates for both keto 2a, b and ester 2c, d, e derivatives significant lowering of the carbonyl frequency, consistent with the presence of an electron-rich center (ylidic carbon) ...
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