Novel Naphthalene– and Cyclohexa-1,3-diene–Silene Cycloadducts

✍ Scribed by Prof. Dr. Norbert Auner; Dipl.-Chem. Claudia Seidenschwarz; Dr. Eberhardt Herdtweck; Dipl.-Chem. Norbert Sewald

• Book ID: 101559777
• Publisher: John Wiley and Sons
• Year: 1991
• Tongue: English
• Weight: 395 KB
• Volume: 30
• Category: Article
• ISSN: 0044-8249
• DOI: 10.1002/anie.199104441

✦ Synopsis

duration of addition 12 h, column chromatography (see Ref. [9]).

[9] The spectroscopic data ('H and 13C NMR, MS) of the new compounds are consistent with the structures. For details of the procedures see Refs. (71 and [ 3 c ] . MS (FAB, m-nitrobenzyl alcohol) of 1 : mjr 1814 ( M e + H, ( M e + 2,100%); of4: mjz 1814(Me + H, 86%), 1815 ( M a + 2,100%). MS (70 eV) of 5: 556 ( M e , 8%), 465 (Me-C,H,, 24%). R, values (SiO,, CH,Cl,jethanol 20:l) of the methyl ether precursors of 1: 0.24, of 3b: 0.32, of 4: 0.22, of 5: 0.41. (101 Due to hydrogen bridge bonds, the phenolic protons show, inter alia, smaller intensities, are shifted or disappear completely. With an empirical formula ofC,,,H,,N,O,, for 1 and 4, the host signalsclearly predominate compared to the guest signals. [ l l ] Adenine hosts: a) K.