Benzo 6-butyl-5-methoxy

Only limited IR spectroscopic data for (benzo)thiepins have been reported. The C —C double bond stretching frequency in 2,7-di-rm-butyl-4,5-dimethylthiepin is observed at 1620 cm-1 with weak intensity.13 Characteristic strong intensities are found for the S —O vibrations in sulfoxide (e.g., 1040 cm-1 for 5-methoxy-4-phenyl-l-benzothiepin-3(2//)-one 1-oxide14) and sulfone (e.g., 1120 and 1300 cm-1 for thiepin 1,1-dioxide15) derivatives. 

Tribromo-m-cresol is oxidized by chromium trioxide in 70% acetic acid at 70-75 °C within 10 min to dibromo-m-toluquinone (3,5-dibromo-2-methyl-p-benzophenone) in 77% yield [559]. 2-BVomo-4-hy-droxy-5-methoxybenzyl alcohol treated with Fremy salt at pH 6 at room temperature for 1 h gives an 84% yield of 2-bromo-5-methoxy -benzo-quinone [487]. 4-Benzyl-2,6-dibromophenol, on oxidation with bromine in a sealed tube, yields 2,6-dibromophenylchinomethide [732] (equation 312). The oxidation of 2,5-di-tert-butyl-4-methoxyphenol with mercuric oxide or... 

Dihydro-5-methoxy-l//-benzo-l,4-diazepine (70) was acylated on N-1 with acetic anhydride and the anion generated on deprotonation of N-1 with n-butyl lithium reacted normally with methyl... 

Isoamyloxy-benzophenon 8 II186. j2-J4-Mewox7-phenyl]-Tslerophenon 8, 186. 4-Methoxy- -phenyl.valeroj enon 8,187. fo.a)-Dimethy]-a)-anisyl.acetophenon 8 I 576. 6-Methoxy-3-tert..butyl-benzophenon 8,187. 4-Methoxy-3-inethyI-6-isopropyl-benzo phenon 8 II210. 

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