The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: 1,3,5,7-Tetramethyl-6-phenyl-2,4,8-trioxa-6-phosphaadamantane, is researched, Molecular C16H21O3P, CAS is 97739-46-3, about Highly ligand-controlled regioselective Pd-catalyzed aminocarbonylation of styrenes with aminophenols, the main research direction is phenyl amide regioselective synthesis ligand controlled; styrene regioselective aminocarbonylation aminophenol palladium catalyst phosphine phosphaadamantane; aminocarbonylation reaction mechanism boronic acid chlorosalicylic additive.HPLC of Formula: 97739-46-3.
Achieving chemo- and regioselectivity simultaneously is challenging in organic synthesis. Transition metal-catalyzed reactions are effective in addressing this problem by the diverse ligand effect on the catalyst center. Ligand-controlled regioselective Pd-catalyzed carbonylation of styrenes with aminophenols was realized, chemoselectively affording amides. Using a combination of boronic acid and 5-chlorosalicylic acid as the additives, linear amides were obtained in high yields and selectivity using tris(4-methoxyphenyl)phosphine in acetonitrile, while branched amides were obtained in high yields and selectivity in butanone by changing the ligand to 1,3,5,7-tetramethyl-2,4,8-trioxa-6-phenyl-6-phosphaadamantane. Further studies show that the nature of the ligand is key to the regioselectivity. Cone angle and Tolman electronic parameter (TEP) have been correlated to the reactivity and regioselectivity. Studies on the acid additives show that different acids act as the proton source and the corresponding counterion can help enhance the reactivity and selectivity.
There is still a lot of research devoted to this compound(SMILES：CC1(C2)OC(C3)(C)OC2(C)OC3(C)P1C4=CC=CC=C4)HPLC of Formula: 97739-46-3, and with the development of science, more effects of this compound(97739-46-3) can be discovered.
Reference:
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics