... in CDCl3 (V– XVIII, XXI–XXV, XXVII–XXXIX, XLII), acetone- d6 (I, II), or DMSO-d6 (XIX, XX, XXVI, XL, XLI); the 1H chemical shifts were determined relative to tetramethylsilane, and the 13C chemical shifts, relative ... Page 6. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY Vol. ...