Diversity-Oriented Synthesis of Fused Pyran g-Lactones via an Efficient Pd-Thiourea-Catalyzed Alkoxycarbonylative Annulation.
[摘要]:We report herein a diversity-oriented synthesis of a range of fused pyran-g-lactones, e.g., I, that was effected through a versatile Pd-thiourea complex-catalyzed intramol. alkoxycarbonylative annulation of ene-diols, e.g., II.
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