Category: 73286-71-2

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Group VI metal-promoted endo-azacyclizations via alkyne-derived metal vinylidene carbenes

The molybdenum-promoted cycloisomerization of terminal alkynes tethered to nitrogen nucleophiles is described. Reaction of N-carbamoyl alkynylamines with (Et3N)Mo(CO)5 affords cyclic enecarbamates. Similarly, cyclization of 2-ethynylaniline gives the isomeric indole heterocycle, although N-3- butynylaniline affords the cyclic metal azacarbene product.

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Pyrroline – Wikipedia,
1-Pyrroline | C4H7N – PubChem

In heterogeneous catalysis, the catalyst is in a different phase from the reactants. Application In Synthesis of N-Boc-2-pyrroline, At least one of the reactants interacts with the solid surface in a physical process called adsorption in such a way. 73286-71-2, name is N-Boc-2-pyrroline. In an article£¬Which mentioned a new discovery about 73286-71-2

Palladium-catalyzed asymmetric intermolecular cyclization

Domino cyclization: Alkylpalladium intermediates in an asymmetric Heck reaction were intercepted by a second alkene to give tricyclic products with high enantioselectivity (see scheme; Boc=tert-butoxycarbonyl). The method was applied to the asymmetric synthesis of a precursor of (-)-martinellic acid, a folk eye medicine in South America. Copyright

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Pyrroline – Wikipedia,
1-Pyrroline | C4H7N – PubChem

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Ruthenium-catalyzed hydroformylation/reduction of olefins to alcohols: Extending the scope to internal alkenes

In the presence of 2-phosphino-substituted imidazole ligands and Ru 3(CO)12 or Ru(methylallyl)2(COD) direct hydroformylation and hydrogenation of alkenes to alcohols takes place. In addition to terminal alkenes, also more challenging internal olefins are converted preferentially to industrially important linear alcohols in high yield (up to 88%) and regioselectivity (n:iso up to 99:1).

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Pyrroline – Wikipedia,
1-Pyrroline | C4H7N – PubChem

One of the major reasons for studying chemical kinetics is to use measurements of the macroscopic properties of a system, category: pyrrolines, such as the rate of change in the concentration of reactants or products with time.In a article, mentioned the application of 73286-71-2, Name is N-Boc-2-pyrroline, molecular formula is C9H15NO2

Normal Alpha Olefin Synthesis Using Dehydroformylation or Dehydroxymethylation

The present invention discloses processes for producing normal alpha olefins, such as 1-hexene, 1-octene, 1-decene, and 1-dodecene in a multistep synthesis scheme from another normal alpha olefin. Also disclosed are reactions for converting aldehydes, primary alcohols, and terminal vicinal diols into normal alpha olefins.

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Pyrroline – Wikipedia,
1-Pyrroline | C4H7N – PubChem

Application of 73286-71-2, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.73286-71-2, Name is N-Boc-2-pyrroline, molecular formula is C9H15NO2. In a Article£¬once mentioned of 73286-71-2

Use of metalated enecarbamates in the squarate cascade. Direct access to highly functionalized 2,4-cyclooctadienones by intramolecular interception of the mesocyclic dienolates

A new method for constructing highly functionalized eight-membered ring ketones, fused to one or two additional rings as desired, is reported.

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Pyrroline – Wikipedia,
1-Pyrroline | C4H7N – PubChem

Electric Literature of 73286-71-2, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.73286-71-2, Name is N-Boc-2-pyrroline, molecular formula is C9H15NO2. In a Article£¬once mentioned of 73286-71-2

Synthesis and studies on gem-fluorinated 2-azabicyclo[n.1.0]alkanes

Three novel amines all possessing gem-difluorocyclopropane, secondary amino group and a fused aliphatic cycle were synthesized by difluorocyclopropanation of N-Boc protected enamides. The compounds were stable when amino group was blocked by protonation or acylation, but otherwise underwent fragmentation already at the room temperature. Chemical structure, physico-chemical properties and fragmentation mechanisms of the fluorinated amines are studied in details.

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Pyrroline – Wikipedia,
1-Pyrroline | C4H7N – PubChem

One of the major reasons for studying chemical kinetics is to use measurements of the macroscopic properties of a system, Formula: C9H15NO2, such as the rate of change in the concentration of reactants or products with time.In a article, mentioned the application of 73286-71-2, Name is N-Boc-2-pyrroline, molecular formula is C9H15NO2

Asymmetric Hydroformylation and Hydrocarboxylation of Enamides. Synthesis of Alanine and Proline

Carbonyltris(triphenylphosphine)hydridorhodium (1) catalyzed the hydroformylation of N-vinylimides in the presence of optically active 2,3-O-isopropylidene-2,3-dihydroxy-1,4-bis(diphenylphosphino)butane (DIOP) or 2,3-O-isopropylidene-2,3-dihydroxy-1,4-bis(5H-dibenzophospholyl)butane (DIPHOL) to afford optically active alpha-amido aldehydes.Linear disubstituted N-vinylimides or -amides reacted very sluggishly, while the cyclic N-acyl-2-pyrroline (19) was very reactive.In the unsubstituted N-vinylimides moderate (20-40percent ee) asymmetric induction was observed.The optically active alpha-amido aldehydes were readily converted to the corresponding alpha-amino acids.Asymmetric hydrocarboxylation of the same substrates in the presence of bis(triphenylphosphine)palladium chloride (2) produced alpha-amido esters in low optical purity.

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Pyrroline – Wikipedia,
1-Pyrroline | C4H7N – PubChem

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Application of a catalytic asymmetric povarov reaction using chiral ureas to the synthesis of a tetrahydroquinoline library

A 2328-membered library of 2,3,4-trisubstituted tetrahydroquinolines was produced using a combination of solution- and solid-phase synthesis techniques. A tetrahydroquinoline (THQ) scaffold was prepared via an asymmetric Povarov reaction using cooperative catalysis to generate three contiguous stereogenic centers. A matrix of 4 stereoisomers of the THQ scaffold was prepared to enable the development of stereo/structure-activity relationships (SSAR) upon biological testing. A sparse matrix design strategy was employed to select library members to be synthesized with the goal of generating a diverse collection of tetrahydroquinolines with physicochemical properties suitable for downstream discovery.

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Pyrroline – Wikipedia,
1-Pyrroline | C4H7N – PubChem

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Asymmetric Hydrocyanation of Alkenes without HCN

A general and efficient rhodium-catalyzed asymmetric cyanide-free hydrocyanation of alkenes has been developed. Based on the asymmetric hydroformylation/condensation/aza-Cope elimination sequences, a broad scope of substrates including mono-substituted, 1,2-, and 1,1-disubstituted alkenes (involving natural product R- and S-limonene) were employed, and a series of valuable chiral nitriles are prepared with high yields (up to 95 %) and enantioselectivities (up to 98 % ee). Notably, the critical factor to achieve high enantioseletivies is the addition of catalytic amount of benzoic acid. This novel methodology provides an efficient and concise synthetic route to the intermediate of vildagliptin and anagliptin.

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Pyrroline – Wikipedia,
1-Pyrroline | C4H7N – PubChem

Chemistry is traditionally divided into organic and inorganic chemistry. Recommanded Product: N-Boc-2-pyrroline, The former is the study of compounds containing at least one carbon-hydrogen bonds.In a patent£¬Which mentioned a new discovery about 73286-71-2

Site-Selective Ni-Catalyzed Reductive Coupling of alpha-Haloboranes with Unactivated Olefins

A mild, chemo- and site-selective catalytic protocol that allows for incorporating an alkylboron fragment into unactivated olefins is described. The use of internal olefins enables C-C bond-formation at remote sp3 C-H sites, constituting a complementary and conceptually different approach to existing borylation techniques that are currently available at sp3 centers.

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Pyrroline – Wikipedia,
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