ChemInform Abstract: Two-Step Conversion of 2-Substituted Furans into γ-Oxo-α,. beta.-unsaturated...

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1996 antibiotics antibiotics U 1200 41 - 240 Two-Step Conversion of 2-Substituted Furans into γ-Oxo-α,. beta.- unsaturated Carboxylic Acids. Formal Synthesis of (+)-Patulolide A and (-)-Pyrenophorin. — Formal synthesis of the title compounds such as (+)-(X) and (-)-(XIII) is presented via the title conversion from the furans such as (VI) and (XI) as the key steps under very mild conditions. It is noteworthy that such a conversion is also possible in the presence of an acetate or tetrahydropyranylether. — (KOBAYASHI, Y.; KISHIHARA, K.; WATATANI, K.; Tetrahedron Lett. 37 (1996) 25, 4385-4388; Dep. Biomol. Eng., Tokyo Inst. Technol., Midori, Yokohama 226, Japan; EN) 1

Transcript of ChemInform Abstract: Two-Step Conversion of 2-Substituted Furans into γ-Oxo-α,. beta.-unsaturated...

Page 1: ChemInform Abstract: Two-Step Conversion of 2-Substituted Furans into γ-Oxo-α,. beta.-unsaturated Carboxylic Acids. Formal Synthesis of (+)-Patulolide A and (-)-Pyrenophorin.

1996 antibiotics

antibioticsU 1200

41 - 240Two-Step Conversion of 2-Substituted Furans into γ-Oxo-α,. beta.-unsaturated Carboxylic Acids. Formal Synthesis of (+)-PatulolideA and (-)-Pyrenophorin. — Formal synthesis of the title compoundssuch as (+)-(X) and (-)-(XIII) is presented via the title conversion from thefurans such as (VI) and (XI) as the key steps under very mild conditions. Itis noteworthy that such a conversion is also possible in the presence of anacetate or tetrahydropyranylether. — (KOBAYASHI, Y.; KISHIHARA, K.;WATATANI, K.; Tetrahedron Lett. 37 (1996) 25, 4385-4388; Dep. Biomol.Eng., Tokyo Inst. Technol., Midori, Yokohama 226, Japan; EN)

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