【摘 要】
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A series of camphor-derived thiourea organocatalysts 3a–f were designed and synthesized from(1R,3S)-camphoric acid 1 and applied to the one-pot three-component
【机 构】
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Department of Chemistry, Yogi Vemana University,
【出 处】
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Chinese Chemical Letters
论文部分内容阅读
A series of camphor-derived thiourea organocatalysts 3a–f were designed and synthesized from(1R,3S)-camphoric acid 1 and applied to the one-pot three-component Kabachnik–Fields reaction. Catalyst 3c was found to be an efficient organocatalyst for the reaction of 2-cyclopropylpyrimidin-4-carbaldehyde 4,various amines 5, and diphenylphosphite 6 to yield the corresponding enantioselective a-aminophosphonates 7a–e in 74%–82% yields and 14%–35% ee.
A series of camphor-derived thiourea organocatalysts 3a-f were designed and synthesized from (1R, 3S) -camphoric acid 1 and applied to the one-pot three-component Kabachnik-Fields reaction. Catalyst 3c was found to be an efficient organocatalyst for the reaction of 2-cyclopropylpyrimidin-4-carbaldehyde 4, various amines 5, and diphenylphosphite 6 to yield the corresponding enantioselective a-aminophosphonates 7a-e in 74% -82% yields and 14% -35% ee.
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