A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, Computed Properties of C9H16ClO6P, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 51805-45-9, Name is 3,3′,3”-Phosphinetriyltripropanoic acid hydrochloride, molecular formula is C9H16ClO6P. In an article, author is Zhu, Yannan,once mentioned of 51805-45-9.
Organocatalyzed [3+3] Annulations for the Construction of Heterocycles
Six-membered heterocyclic systems are widely distributed in many natural products and pharmaceuticals, and the construction of highly functionalized six-membered heterocyclic compounds is an important topic in modern organic synthesis. Organocatalyzed [3+3] annulations represents an important method for assembling a substantial variety of six-membered cycles that contain one or more heteroatoms. This review describes the development of organocatalyzed [3+3] annulations for the synthesis of six-membered heterocycles, including organocatalysis using secondary amines, tertiary amines, phosphines, chiral phosphoric acids and N-heterocyclic carbenes. 1 Introduction 2 Secondary Amine Catalyzed [3+3] Annulations 2.1 Synthesis of Nitrogen Heterocycles 2.2 Synthesis of Oxygen Heterocycles 2.3 Synthesis of Sulfur Heterocycles 3 Tertiary Amine Catalyzed [3+3] Annulations 3.1 Catalysis through Multiple Hydrogen-Bonding Interactions 3.2 Catalysis of Tertiary Amines as Lewis Bases 4 Phosphine-Catalyzed [3+3] Annulations 4.1 Synthesis of Nitrogen Heterocycles 4.2 Synthesis of Oxygen Heterocycles 4.3 Synthesis of Heterocycles Containing Two or More Heteroatoms 5 Chiral Phosphoric Acid Catalyzed [3+3] Annulations 5.1 Synthesis of Nitrogen Heterocycles 5.2 Synthesis of Heterocycles Containing Two or More Heteroatoms 6 N-Heterocyclic Carbene Catalyzed [3+3] Annulations 6.1 Synthesis of Nitrogen Heterocycles 6.2 Synthesis of Oxygen Heterocycles 6.3 Synthesis of Heterocycles Containing Two or More Heteroatoms 7 Conclusion and Outlook
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Phosphine ligand,
,Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate