Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 97739-46-3, is researched, Molecular C16H21O3P, about Cage Phosphinites: Ligands for Efficient Nickel-Catalyzed Hydrocyanation of 3-Pentenenitrile, the main research direction is bromo oxaphosphaadamantane reaction alc phenol platinum rhodium nickel; pentenenitrile hydrocyanation catalyst nickel oxaphosphaadamantane cage phosphinite; crystal structure oxaphosphaadamantane cage phosphinite platinum rhodium nickel preparation; mol structure oxaphosphaadamantane cage phosphinite platinum rhodium nickel preparation.Application of 97739-46-3.
The cage monophosphinites CgPOR {where CgP = 6-phospha-2,4,8-trioxa-adamantane and R = Ph (La); 2-C6H4CH3 (Lb); 2,4,6-C6H2Me3 (Lc); 2,4-C6H3tBu2 (Ld); CH3 (Le); CH2CF3 (Lf)} and diphosphinites CgPZPCg {where ZH2 = 2,2′-biphenol (Lg) or 1,2-benzenedimethanol (Lh)} were made from CgPBr and the corresponding alc. or phenol. The cage phosphinites are remarkably stable to H2O. All the ligands La-h were tested for Ni(0)-catalyzed hydrocyanation of 3-pentenenitrile in the presence of Lewis acids (ZnCl2, Ph2BOBPh2, or iBu2AlOAliBu2), and tentative structure-activity relations are suggested. The hydrocyanation activities obtained with catalysts derived from monophosphinite Lf (with iBu2AlOAliBu2) and diphosphinite Lh (with ZnCl2) are comparable with the com. catalyst based on P(OTol)3. Trans-[PtCl2(L)2] where L = La (1a), Le (1e), and Lf (1f) and the chelate cis-[PtCl2(Lh)] (1h) are reported. From the νCO values for trans-[RhCl(CO)(La-f)2] (2a-f), it is concluded that ligand Lf is the most phosphite-like of the monophosphinites. Treatment of [Ni(cod)2] (cod = 1,5-cyclooctadiene) with Lh leads to a mixture of products, one of which was characterized as the binuclear [Ni2(Lh)2(μ-cod)] (3h). The crystal structures of Lh, 1a, 1e, 1f, 1h·2CH2Cl2, and 3h·3C6H5CH3 are reported.
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Reference:
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics