Problem Set 8 - Practice 2D Problem The NMR spectra...

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Unformatted text preview: Practice 2D Problem The NMR spectra depicted in Figs. 4.13.1 - 4.13.3 belong to a pleasant smelling liquid. What is the structure of this compound 22 which is a natural product with the molecular formula CBHZOO? Fig. 4.13.1. 400 MHz l1-1 NMR spectrum of 22, in CDCI]. Fig. 4.13.2. 400 MHz COSY spectrum of22, in CDCI}. -> Fig. 4.13.3. 100.6 MHz HETCOR and DEPT spectra of 22, in CDCI}. The cxact values of the ‘3C chemical shifts are: 8 = 149.0, 132.2, 131.8, 122.6, 54.2, 32.4, 31.1, 27.7, 26. 8, 26.7, 22.9, and 22.7. There is an additional signal at 5 = 198.4 (C). | MD 120 100 an so 40 23 213‘ ; V] ...
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This note was uploaded on 10/08/2009 for the course CHEM 439 taught by Professor Falzone,c during the Spring '08 term at Pennsylvania State University, University Park.

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Problem Set 8 - Practice 2D Problem The NMR spectra...

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