syn-anti-Isomerism at the Carbon-Sulfur
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Priv.-Doz. Dr. Horst Kessler; Hans-Otto Kalinowski
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Article
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1970
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John Wiley and Sons
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English
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respectively, in about 50 yield by reaction with di(p-nitrophenyl) phosphorochloridate 151. Whereas (56) is obtained directly (55 % yield) on treatment of (26) with 1 N NaOH/methanol (1 :1) in 100 h at room temperature, (5a) can only be synthesized stepwise. As first step, one p-nitrophenol group i