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29
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0142060380
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note
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7d gave 10 in 79% yield. However, the reaction of 9 under the same conditions gave a mixture of 9 and an unidentified compound.
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30
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0142123642
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note
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5a
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31
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37
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0142123640
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note
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3) δ=5.25 (2H, s), 6.53 (1H, d, J=3.6), 7.11 (1H, d, J=3.6).
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46
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0142028325
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note
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16b, 16d
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47
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0142123639
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note
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The reaction of 16a under an oxygen atmosphere, to accelerate the oxidation, afforded 3 only in 21% yield.
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