Category: 97739-46-3

In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Synthesis of Dibenzo[b,f][1,4]oxazepin-11(10H)-ones via Intramolecular Cyclocarbonylation Reactions Using PdI2/Cytop 292 as the Catalytic System, published in 2010-09-17, which mentions a compound: 97739-46-3, mainly applied to dibenzooxazepinone preparation; phenoxyaniline intramol cyclocarbonylation palladium tetramethylphenyltrioxaphospha adamantane catalyst, Electric Literature of C16H21O3P.

The intramol. cyclocarbonylation of substituted 2-(2-iodophenoxy)anilines, e.g. I, was catalyzed by PdI2 and 1,3,5,7-tetramethyl-6-phenyl-2,4,8-trioxa-6-phospha-adamantane (Cytop 292) in an efficient manner. A series of substituted dibenzo[b,f][1,4]oxazepin-11(10H)-ones, e.g. II, were prepared in good yields under mild reaction conditions.

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Reference:
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics

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 Discovery of A-1331852, a First-in-Class, Potent, and Orally-Bioavailable BCL-XL Inhibitor, the main research direction is tumor BCLXL BCL2 apoptosis A1155463 structure based drug design.COA of Formula: C16H21O3P.

Herein we describe the discovery of A-1331852(I), a first-in-class orally active BCL-XL inhibitor that selectively and potently induces apoptosis in BCL-XL dependent tumor cells. This mol. was generated by re-engineering our previously reported BCL-XL inhibitor A-1155463 using structure-based drug design. Key design elements included rigidification of the A-1155463 pharmacophore and introduction of sp3-rich moieties capable of generating highly productive interactions within the key P4 pocket of BCL-XL. A-1331852 has since been used as a critical tool mol. for further exploring BCL-2 family protein biol., while also representing an attractive entry into a drug discovery program.

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Reference:
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics

Name: 1,3,5,7-Tetramethyl-6-phenyl-2,4,8-trioxa-6-phosphaadamantane. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: 1,3,5,7-Tetramethyl-6-phenyl-2,4,8-trioxa-6-phosphaadamantane, is researched, Molecular C16H21O3P, CAS is 97739-46-3, about Synthesis of β2,2-Amino esters via Rh-Catalysed Regioselective Hydroaminomethylation. Author is Cunillera, Anton; Ruiz, Aurora; Godard, Cyril.

The synthesis of β2,2-amino esters was successfully achieved via Rh-catalyzed regioselective hydroaminomethylation of Me methacrylate with secondary amines using the neutral precursor Rh(acac)(CO)2. In this process, the presence of mol. sieves was crucial in order to access the final amino ester. For the synthesis of products containing aniline derivatives, the use of the cationic precursor [Rh(COD)2]BF4 and MeCgPPh phosphine I as ligand was necessary in a mixture of toluene/DCE as solvent. Effects of the steric and electronic properties of the amines were observed Interestingly, the poisoning effect of CO in the hydrogenation of the imine intermediate was observed when benzyl amine was used.

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Reference:
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics

In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Development of methods for the synthesis of libraries of substituted maleimides and α,β-unsaturated-γ-butyrolactams, published in 2011-05-06, which mentions a compound: 97739-46-3, Name is 1,3,5,7-Tetramethyl-6-phenyl-2,4,8-trioxa-6-phosphaadamantane, Molecular C16H21O3P, HPLC of Formula: 97739-46-3.

Synthetic methods for the preparation of maleimide and α,β-unsaturated-γ-butyrolactam compound collections are described. These routes take advantage of Pd cross-coupling and conjugate addition/elimination reactions to permit the facile production of bisaryl-maleimides, anilinoaryl-maleimides, and bisanilino-maleimides while allowing control over the synthesis of sym. or nonsym. derivatives Similarly, the chem. developed allows for the generation of bisaryl substituted α,β-unsaturated-γ-butyrolactams. The scope and limitations of the approaches are presented.

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Reference:
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics

The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《A novel phosphorus heterocyclic system from the reactions of phosphine and primary phosphines with 2,4-pentanedione》. Authors are Epstein, Martin; Buckler, Sheldon A..The article about the compound:1,3,5,7-Tetramethyl-6-phenyl-2,4,8-trioxa-6-phosphaadamantanecas:97739-46-3,SMILESS:CC1(C2)OC(C3)(C)OC2(C)OC3(C)P1C4=CC=CC=C4).Formula: C16H21O3P. Through the article, more information about this compound (cas:97739-46-3) is conveyed.

Reaction of phosphine with 2,4-pentanedione in aqueous acid solution gives a high yield of a product having the composition C10H17O3P. On the basis of spectroscopic and chem. evidence, a cyclic acetal structure I (R = H) is proposed for this substance. Similar materials are obtained from reactions of some primary phosphines with this diketone. In addition, compounds containing two and three P atoms have been isolated for which structures such as II (or an isomer) and III are suggested. Some reactions of these compounds are reported and a possible route for their formation is presented

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Reference:
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics

Reference of 1,3,5,7-Tetramethyl-6-phenyl-2,4,8-trioxa-6-phosphaadamantane. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: 1,3,5,7-Tetramethyl-6-phenyl-2,4,8-trioxa-6-phosphaadamantane, is researched, Molecular C16H21O3P, CAS is 97739-46-3, about A synthesis of sulfonamide analogs of platensimycin employing a palladium-mediated carbonylation strategy. Author is McNulty, James; Nair, Jerald J.; Capretta, Alfredo.

The monodentate ligand 1,3,5,7-tetramethyl-2,4,8-trioxa-6-phenyl-6-phospha-adamantane (PA-Ph) is shown to be highly effective in palladium-catalyzed carbonylative cross-coupling. Aryl and vinyl halides were efficiently converted to carboxylic acids, amides and to primary, secondary, and tertiary esters, resp. Application of the Pd(OAc)2/PA-Ph (1:1) catalyst system proved critical in the methoxycarbonylation of a functionalized nitroresorcinol halide, allowing convenient access to novel platensimycin sulfonamide analogs (e.g. I).

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Reference:
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics

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 Pd-Catalyzed Regioselective Alkoxycarbonylation of 1-Alkenes Using a Lewis Acid [SnCl2 or Ti(OiPr)4] and a Phosphine, the main research direction is alkene alc carbon monoxide palladium Lewis acid phosphine alkoxycarbonylation; ester regioselective preparation.Safety of 1,3,5,7-Tetramethyl-6-phenyl-2,4,8-trioxa-6-phosphaadamantane.

The phosphine ligand mediated palladium catalyzed alkoxycarbonylation of alkenes was investigated with the objective of attaining good linear selectivity for the ester. The effect of various parameters such as solvents, additives, palladium precursors, CO pressures, and alkenes of various structural complexities were examined The results revealed the importance of using a Lewis acid such as SnCl2 or Ti(OiPr)4 in combination with a monodentate ligand such CYTOP 292 or P(p-anisyl)3 to enhance the regioselectivity for the linear isomers in the range of 70-96%.

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Reference:
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics

Related Products of 97739-46-3. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: 1,3,5,7-Tetramethyl-6-phenyl-2,4,8-trioxa-6-phosphaadamantane, is researched, Molecular C16H21O3P, CAS is 97739-46-3, about Nanomole-scale high-throughput chemistry for the synthesis of complex molecules. Author is Buitrago Santanilla, Alexander; Regalado, Erik L.; Pereira, Tony; Shevlin, Michael; Bateman, Kevin; Campeau, Louis-Charles; Schneeweis, Jonathan; Berritt, Simon; Shi, Zhi-Cai; Nantermet, Philippe; Liu, Yong; Helmy, Roy; Welch, Christopher J.; Vachal, Petr; Davies, Ian W.; Cernak, Tim; Dreher, Spencer D..

At the forefront of new synthetic endeavors, such as drug discovery or natural product synthesis, large quantities of material are rarely available and timelines are tight. A miniaturized automation platform enabling high-throughput experimentation for synthetic route scouting to identify conditions for preparative reaction scale-up would be a transformative advance. Because automated, miniaturized chem. is difficult to carry out in the presence of solids or volatile organic solvents, most of the synthetic toolkit cannot be readily miniaturized. Using palladium-catalyzed cross-coupling reactions as a test case, we developed automation-friendly reactions to run in DMSO at room temperature This advance enabled us to couple the robotics used in biotechnol. with emerging mass spectrometry-based high-throughput anal. techniques. More than 1500 chem. experiments were carried out in less than a day, using as little as 0.02 mg of material per reaction. The synthesis of the target compounds was achieved using as starting materials N-(1,1-dimethylethyl)-4′-[(6-iodo-4-oxo-2-propyl-3(4H)-quinazolinyl)methyl][1,1′-biphenyl]-2-sulfonamide, (5R)-3-(3-fluoro-4-iodophenyl)-5-(1H-1,2,3-triazol-1-ylmethyl)-2-oxazolidinone, 7-[(3-bromo-4-methoxyphenyl)methyl]-1-ethyl-3,7-dihydro-8-[[(1R,2R)-2-hydroxycyclopentyl]amino]-3-(2-hydroxyethyl)-1H-purine-2,6-dione. Other reactants included (3R,4S)-3-[[[[3-bromo-5-(3-methoxypropyl)-4-methylphenyl]methyl]cyclopropylamino]carbonyl]-4-(1,2-dihydro-1-methyl-2-oxo-4-pyridinyl)-1-piperidinecarboxylic acid 1,1-dimethylethyl ester, 1-[(4-chlorophenyl)methyl]-3-[(1,1-dimethylethyl)thio]-5-(3-isoquinolinylmethoxy)-α,α-dimethyl-1H-indole-2-propanoic acid Me ester. Amine reactants included 1-piperazinecarboxylic acid Et ester, 1-(aminomethyl)cyclopropanecarboxylic acid ester, carbamic acid 1,1-dimethylethyl ester, 4-fluoro-2-pyridinamine, 2-thiophenesulfonamide, 2-(dimethylamino)acetamide, cyclopropanecarboximidamide, 1-methly-1H-pyrazole-2-ethanol, 2-cyano-N,N-dimethylacetamide, 1-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole, 2-(ethynyl)pyrazine. A series of catalysts and reagents was evaluated.

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Reference:
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics

The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《A novel phosphorus heterocyclic system from the reactions of phosphine and primary phosphines with 2,4-pentanedione》. Authors are Epstein, Martin; Buckler, Sheldon A..The article about the compound:1,3,5,7-Tetramethyl-6-phenyl-2,4,8-trioxa-6-phosphaadamantanecas:97739-46-3,SMILESS:CC1(C2)OC(C3)(C)OC2(C)OC3(C)P1C4=CC=CC=C4).Recommanded Product: 1,3,5,7-Tetramethyl-6-phenyl-2,4,8-trioxa-6-phosphaadamantane. Through the article, more information about this compound (cas:97739-46-3) is conveyed.

Reaction of phosphine with 2,4-pentanedione in aqueous acid solution gives a high yield of a product having the composition C10H17O3P. On the basis of spectroscopic and chem. evidence, a cyclic acetal structure I (R = H) is proposed for this substance. Similar materials are obtained from reactions of some primary phosphines with this diketone. In addition, compounds containing two and three P atoms have been isolated for which structures such as II (or an isomer) and III are suggested. Some reactions of these compounds are reported and a possible route for their formation is presented

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Reference:
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics

Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 97739-46-3, is researched, SMILESS is CC1(C2)OC(C3)(C)OC2(C)OC3(C)P1C4=CC=CC=C4, Molecular C16H21O3PJournal, Article, Research Support, Non-U.S. Gov’t, Journal of Organic Chemistry called Development of methods for the synthesis of libraries of substituted maleimides and α,β-unsaturated-γ-butyrolactams, Author is Awuah, Emelia; Capretta, Alfredo, the main research direction is diarylmaleimide preparation; dibromomaleimide arylboronic acid Suzuki coupling palladium; diaminomaleimide preparation; amine dibromomaleimide amination; diarylbutyrolactam preparation.Product Details of 97739-46-3.

Synthetic methods for the preparation of maleimide and α,β-unsaturated-γ-butyrolactam compound collections are described. These routes take advantage of Pd cross-coupling and conjugate addition/elimination reactions to permit the facile production of bisaryl-maleimides, anilinoaryl-maleimides, and bisanilino-maleimides while allowing control over the synthesis of sym. or nonsym. derivatives Similarly, the chem. developed allows for the generation of bisaryl substituted α,β-unsaturated-γ-butyrolactams. The scope and limitations of the approaches are presented.

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Reference:
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics