Category: 97739-46-3

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, Organic & Biomolecular Chemistry called The synthesis of a series of adenosine A3 receptor agonists, Author is Broadley, Kenneth J.; Burnell, Erica; Davies, Robin H.; Lee, Alan T. L.; Snee, Stephen; Thomas, Eric J., the main research direction is uronamide nucleoside adenosine receptor synthesis coupling.Recommanded Product: 97739-46-3.

A series of 1′-(6-aminopurin-9-yl)-1′-deoxy-N-methyl-β-D-ribofuranuronamides that were characterized by 2-dialkylamino-7-methyloxazolo[4,5-b]pyridin-5-ylmethyl substituents on N6 of interest for screening as selective adenosine A3 receptor agonists, have been synthesized. This work involved the synthesis of 2-dialkylamino-5-aminomethyl-7-methyloxazolo[4,5-b]pyridines and analogs that were coupled with the known 1′-(6-chloropurin-9-yl)-1′-deoxy-N-methyl-β-D-ribofuranuronamide. The oxazolo[4,5-b]pyridines were synthesized by regioselective functionalization of 2,4-dimethylpyridine N-oxides. The regioselectivities of these reactions were found to depend upon the nature of the heterocycle with 2-dimethylamino-5,7-dimethyloxazolo[4,5-b]pyridine-N-oxide undergoing regioselective functionalization at the 7-Me group on reaction with trifluoroacetic anhydride in contrast to the reaction of 4,6-dimethyl-3-hydroxypyridine-N-oxide with acetic anhydride that resulted in functionalization of the 6-Me group. To optimize selectivity for the A3 receptor, 5-aminomethyl-7-bromo-2-dimethylamino-4-[(3-methylisoxazol-5-yl)methoxy]benzo[d]oxazole was synthesized and coupled with the 1′-(6-chloropurin-9-yl)-1′-deoxy-N-methyl-β-D-ribofuranuronamide. The products, e.g. I, were active as selective adenosine A3 agonists.

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Safety of 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 The synthesis of a series of adenosine A3 receptor agonists. Author is Broadley, Kenneth J.; Burnell, Erica; Davies, Robin H.; Lee, Alan T. L.; Snee, Stephen; Thomas, Eric J..

A series of 1′-(6-aminopurin-9-yl)-1′-deoxy-N-methyl-β-D-ribofuranuronamides that were characterized by 2-dialkylamino-7-methyloxazolo[4,5-b]pyridin-5-ylmethyl substituents on N6 of interest for screening as selective adenosine A3 receptor agonists, have been synthesized. This work involved the synthesis of 2-dialkylamino-5-aminomethyl-7-methyloxazolo[4,5-b]pyridines and analogs that were coupled with the known 1′-(6-chloropurin-9-yl)-1′-deoxy-N-methyl-β-D-ribofuranuronamide. The oxazolo[4,5-b]pyridines were synthesized by regioselective functionalization of 2,4-dimethylpyridine N-oxides. The regioselectivities of these reactions were found to depend upon the nature of the heterocycle with 2-dimethylamino-5,7-dimethyloxazolo[4,5-b]pyridine-N-oxide undergoing regioselective functionalization at the 7-Me group on reaction with trifluoroacetic anhydride in contrast to the reaction of 4,6-dimethyl-3-hydroxypyridine-N-oxide with acetic anhydride that resulted in functionalization of the 6-Me group. To optimize selectivity for the A3 receptor, 5-aminomethyl-7-bromo-2-dimethylamino-4-[(3-methylisoxazol-5-yl)methoxy]benzo[d]oxazole was synthesized and coupled with the 1′-(6-chloropurin-9-yl)-1′-deoxy-N-methyl-β-D-ribofuranuronamide. The products, e.g. I, were active as selective adenosine A3 agonists.

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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 Facile preparation of highly-functionalized, nitrogen-bearing diarylmethanes, the main research direction is nitrogen arylmethane preparation coupling chloromethyl heterocycle boronic acid.Formula: C16H21O3P.

A palladium-catalyzed cross coupling of nitrogen bearing heterocyclic chloromethyl derivatives with aryl and heteroaryl boronic acids has been developed. In almost all cases, highly efficient cross-couplings were observed at ambient temperature, mitigating unwanted thermally induced side-reactions. The comprehensive substrate scope and respectable yields highlight the synthetic utility of this reaction.

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The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Quenching studies of a gold-silver alloy》. Authors are Kloske, R.; Kauffman, J. W..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).Application In Synthesis of 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.

The elec. resistance of Au 1.2 at. % Ag samples was measured after quenching at 500-950°. The resulting increase in resistivity immediately after the quench, ΔρQ, is described by the relation ΔρQ = A exp( – Efa÷kTQ), where A is ( 7.6 ± 1.3) × 10 -4 ohm-cm.; Efa, the apparent formation energy equals (1.01 ± 0.03) e.v. From the exptl. limits of error for the formation energy in pure Au, an upper limit of 0.1 e.v. was established for the binding energy between lattice vacancies and the solute atoms. The recovery of quenched-in resistivity was determined during annealing at 50-84° following a quench from 700°. The slope intersection method gave an activation energy of 0.85 ± 0.05 e.v. for the recovery of the quenched-in resistivity. The extra resistivity increased upon annealing by 8% and then annealed at a rate 30% to 40% less than that which has been observed for pure Au. The recovery behavior was interpreted in terms of vacancy-impurity complexes. A corresponding binding energy of 0.05 e.v. was obtained.

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Tetrahydropyran – Wikipedia,
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Fuentes, Jose A.; Slawin, Alexandra M. Z.; Clarke, Matthew L. published an article about the compound: 1,3,5,7-Tetramethyl-6-phenyl-2,4,8-trioxa-6-phosphaadamantane( cas:97739-46-3,SMILESS:CC1(C2)OC(C3)(C)OC2(C)OC3(C)P1C4=CC=CC=C4 ).HPLC of Formula: 97739-46-3. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:97739-46-3) through the article.

Pre-catalysts of type [PdCl(allyl)(monophosphine)] where the monophosphine is one of the tri-oxo-adamantyl cage phosphines such as 1,3,5,7-tetramethyl-6-phenyl-2,4,8-trioxo-6-phospha-adamantane give very high reactivity in the regioselective hydroxycarbonylation and alkoxycarbonylation (hydro-esterification) of styrene at 60 °C. This high reactivity enables the use of tert-butanol as nucleophile in the alkoxycarbonylation of styrene.

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COA of Formula: C16H21O3P. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: 1,3,5,7-Tetramethyl-6-phenyl-2,4,8-trioxa-6-phosphaadamantane, is researched, Molecular C16H21O3P, CAS is 97739-46-3, about Palladium complexes of 1,3,5,7-tetramethyl-2,4,8-trioxa-6-phenyl-6-phosphaadamantane: Synthesis, crystal structure and use in the Suzuki and Sonogashira reactions and the α-arylation of ketones. Author is Adjabeng, George; Brenstrum, Tim; Frampton, Christopher S.; Robertson, Al J.; Hillhouse, John; McNulty, James; Capretta, Alfredo.

Palladium complexes of 1,3,5,7-tetramethyl-2,4,8-trioxa-6-phenyl-6-phosphaadamantane were prepared and characterized with Pd[1,3,5,7-tetramethyl-2,4,8-trioxa-6-phenyl-6-phosphaadamantane]2·dba shown to be an effective catalyst for use in the Suzuki and Sonogashira reactions and the α-arylation of ketones. Couplings using this versatile complex proceeded in excellent yields under mild conditions.

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Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics

Ullah, Ehsan; McNulty, James; Robertson, Al published an article about the compound: 1,3,5,7-Tetramethyl-6-phenyl-2,4,8-trioxa-6-phosphaadamantane( cas:97739-46-3,SMILESS:CC1(C2)OC(C3)(C)OC2(C)OC3(C)P1C4=CC=CC=C4 ).COA of Formula: C16H21O3P. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:97739-46-3) through the article.

A Pd catalyst system is described that allows very high chemoselective monoarylation on all three isomers of dichlorobenzene. Direct application of these commodity chems. to high-value ligands, anilines, azides, and carbazoles was achieved through this process discovery.

From this literature《Highly Chemoselective Mono-Suzuki Arylation Reactions on All Three Dichlorobenzene Isomers and Applications Development》,we know some information about this compound(97739-46-3)COA of Formula: C16H21O3P, but this is not all information, there are many literatures related to this compound(97739-46-3).

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Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics

Le, Christine M.; Hou, Xiao; Sperger, Theresa; Schoenebeck, Franziska; Lautens, Mark published an article about the compound: 1,3,5,7-Tetramethyl-6-phenyl-2,4,8-trioxa-6-phosphaadamantane( cas:97739-46-3,SMILESS:CC1(C2)OC(C3)(C)OC2(C)OC3(C)P1C4=CC=CC=C4 ).Safety of 1,3,5,7-Tetramethyl-6-phenyl-2,4,8-trioxa-6-phosphaadamantane. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:97739-46-3) through the article.

Pharmaceutically relevant methylene oxindoles are synthesized by a palladium(0)-catalyzed intramol. chlorocarbamoylation reaction of alkynes. A relatively underexplored class of caged phosphine ligands is uniquely suited for this transformation, enabling high levels of reactivity and exquisite trans selectivity. E.g., in presence of Pd2(dba)3 and 1,3,5,7-tetramethyl-2,4,6-trioxa-8-phenyl-6-phosphaadamantane in toluene, intramol. chlorocarbamoylation of 2-TIPSCCC6H4NBnCOCl gave 96% 3-(chloromethylene)oxindole derivative (E)-I. This report entails the first transition-metal-catalyzed atom-economic addition of a carbamoyl chloride across an alkyne.

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

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 1,3,5,7-Tetramethyl-6-phenyl-2,4,8-trioxa-6-phosphaadamantane(SMILESS: CC1(C2)OC(C3)(C)OC2(C)OC3(C)P1C4=CC=CC=C4,cas:97739-46-3) is researched.Application of 4144-22-3. The article 《Discovery of A-1331852, a First-in-Class, Potent, and Orally-Bioavailable BCL-XL Inhibitor》 in relation to this compound, is published in ACS Medicinal Chemistry Letters. Let’s take a look at the latest research on this compound (cas:97739-46-3).

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

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 Application of palladium (trioxo-adamantyl cage phosphine)chloride complexes as catalysts for the alkoxycarbonylation of styrene; Pd catalysed tert-butoxycarbonylation of styrene, published in 2012, which mentions a compound: 97739-46-3, mainly applied to palladium trioxo adamantyl cage phosphine chloride complex catalysts; alkoxycarbonylation styrene palladium catalyzed tert butoxycarbonylation styrene, SDS of cas: 97739-46-3.

Pre-catalysts of type [PdCl(allyl)(monophosphine)] where the monophosphine is one of the tri-oxo-adamantyl cage phosphines such as 1,3,5,7-tetramethyl-6-phenyl-2,4,8-trioxo-6-phospha-adamantane give very high reactivity in the regioselective hydroxycarbonylation and alkoxycarbonylation (hydro-esterification) of styrene at 60 °C. This high reactivity enables the use of tert-butanol as nucleophile in the alkoxycarbonylation of styrene.

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