Revised Structure, Total Synthesis, and Absolute Configuration of Kopeolin and Kopeolone

S Miquet, P Brémond, B Ayela…

Index: Ibarra, Carlos Alvarez; Arias, Selma; Fernandez, Maria J.; Sinisterra, Jose V. Journal of the Chemical Society, Perkin Transactions 2: Physical Organic Chemistry (1972-1999), 1989 , p. 503 - 508

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Abstract

... The Journal of Organic ... Chemical shifts (δ) in parts per million are reported using residual nondeuterated solvents as internal references to calibrate the spectra (CHCl 3 7.26 ppm ... cm –1 ; 1 H NMR (400 MHz, CDCl 3 ) δ = 4.75 and 4.58 (AB, J = 7.2 Hz, 2H), 4.29 (br d, J = 4.5 Hz ...