Category: 7661-33-8

So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic.Lv, Xin; Bao, Weiliang researched the compound: 1-(4-Chlorophenyl)pyrrolidin-2-one( cas:7661-33-8 ).Recommanded Product: 7661-33-8.They published the article 《A β-Keto Ester as a Novel, Efficient, and Versatile Ligand for Copper(I)-Catalyzed C-N, C-O, and C-S Coupling Reactions》 about this compound( cas:7661-33-8 ) in Journal of Organic Chemistry. Keywords: arylamide preparation copper catalyzed coupling keto ester ligand; arylimidazole preparation copper catalyzed coupling keto ester ligand; aryl ether preparation copper catalyzed coupling keto ester ligand; copper catalyzed coupling keto ester ligand aryl thioether preparation. We’ll tell you more about this compound (cas:7661-33-8).

Employing Et 2-oxocyclohexanecarboxylate as a novel, efficient, and versatile ligand, the copper-catalyzed coupling reactions of various N/O/S nucleophilic reagents with aryl halides could be successfully carried out under mild conditions. A variety of products including N-arylamides, N-arylimidazoles, aryl ethers, and aryl thioethers were synthesized in good to excellent yields.

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So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic.Feng, Kaibo; Quevedo, Raundi E.; Kohrt, Jeffrey T.; Oderinde, Martins S.; Reilly, Usa; White, M. Christina researched the compound: 1-(4-Chlorophenyl)pyrrolidin-2-one( cas:7661-33-8 ).HPLC of Formula: 7661-33-8.They published the article 《Late-stage oxidative C(sp3)-H methylation》 about this compound( cas:7661-33-8 ) in Nature (London, United Kingdom). Keywords: methylation oxidative regioselective chemoselective manganese catalyst. We’ll tell you more about this compound (cas:7661-33-8).

Frequently referred to as the ‘magic Me effect’, the installation of Me groups-especially adjacent (α) to heteroatoms-has been shown to dramatically increase the potency of biol. active mols.1-3. However, existing methylation methods show limited scope and have not been demonstrated in complex settings1. Here, we report a regioselective and chemoselective oxidative C(sp3)-H methylation method that is compatible with late-stage functionalization of drug scaffolds and natural products. This combines a highly site-selective and chemoselective C-H hydroxylation with a mild, functional-group-tolerant methylation. Using a small-mol. manganese catalyst, Mn(CF3PDP), at low loading (at a substrate/catalyst ratio of 200) affords targeted C-H hydroxylation on heterocyclic cores, while preserving electron-neutral and electron-rich aryls. Fluorine- or Lewis-acid-assisted formation of reactive iminium or oxonium intermediates enables the use of a mildly nucleophilic organoaluminum methylating reagent that preserves other electrophilic functionalities on the substrate. We show this late-stage C(sp3)-H methylation on 41 substrates housing 16 different medicinally important cores that include electron-rich aryls, heterocycles, carbonyls and amines. Eighteen pharmacol. relevant mols. with competing sites, including drugs (for example, tedizolid) and natural products, are methylated site-selectively at the most electron rich, least sterically hindered position. We demonstrate the syntheses of two magic Me substrates, an inverse agonist for the nuclear receptor RORc and an antagonist of the sphingosine-1-phosphate receptor-1, via late-stage methylation from the drug or its advanced precursor. We also show a remote methylation of the B-ring carbocycle of an abiraterone analog. The ability to methylate such complex mols. at late stages will reduce synthetic effort and thereby expedite broader exploration of the magic Me effect in pursuit of new small-mol. therapeutics and chem. probes.

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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: 7661-33-8, is researched, SMILESS is O=C1N(C2=CC=C(Cl)C=C2)CCC1, Molecular C10H10ClNOJournal, Organometallics called Dinuclear Copper(I) Complexes as Precatalysts in Ullmann and Goldberg Coupling Reactions, Author is Haldon, Estela; Alvarez, Eleuterio; Nicasio, M. Carmen; Perez, Pedro J., the main research direction is copper bisazaindolylmethane dinuclear complex preparation crystal structure; cross coupling catalyst copper bisazaindolylmethane dinuclear complex; Ullmann coupling catalyst copper bisazaindolylmethane dinuclear complex; Goldberg coupling catalyst copper bisazaindolylmethane dinuclear complex.Reference of 1-(4-Chlorophenyl)pyrrolidin-2-one.

The use of structurally well-characterized Cu(I) species as precatalysts in C-N and C-S bond forming reactions is described. Two new dinuclear Cu(I) complexes containing two isomeric ligands of bis(7-azaindolyl)methane were synthesized and fully characterized by NMR and x-ray diffraction studies. Both Cu(I) species exhibit a 1:1 Cu/L ratio and were used as precatalysts in the N-arylation of 2-pyrrolidinone and S-arylation of thiols with aryl iodides. The complexes efficiently catalyze these cross-coupling reactions, affording high yields of products under mild conditions.

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So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic.Kukalenko, S. S.; Gracheva, N. A. researched the compound: 1-(4-Chlorophenyl)pyrrolidin-2-one( cas:7661-33-8 ).Reference of 1-(4-Chlorophenyl)pyrrolidin-2-one.They published the article 《New synthesis of N-aryl- and N-alkylpyrrolidones, and some of their properties》 about this compound( cas:7661-33-8 ) in Khimiya Geterotsiklicheskikh Soedinenii. Keywords: aryl pyrrolidinones. We’ll tell you more about this compound (cas:7661-33-8).

N-Aryl pyrrolidinones (I) [R = 2,3-Me2C6H3, 2-ClC6H4, 4-ClC6H4, 3,4-Cl2C6H3, 4-BrC6H4, and 2,4-(MeO)BrC6H3] were prepared with 85-98% yield by heating equimolar amounts of γ-butyrolactone (II) and hydrochlorides of primary aromatic amines at 60-210° for 4-20 hr. The reaction of II with hydrochlorides of aliphatic amines proceeds with difficulty and the yield of the corresponding N-alkyl pyrrolidinones is 20-33%. All the pyrrolidinones are active fungicides.

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Zheng, Yanling; Nie, Xufeng; Long, Yang; Ji, Li; Fu, Haiyan; Zheng, Xueli; Chen, Hua; Li, Ruixiang published the article 《Ruthenium-catalyzed synthesis of N-substituted lactams by acceptorless dehydrogenative coupling of diols with primary amines》. Keywords: lactam preparation green chem; diol amine dehydrogenative coupling ruthenium catalyst.They researched the compound: 1-(4-Chlorophenyl)pyrrolidin-2-one( cas:7661-33-8 ).Quality Control of 1-(4-Chlorophenyl)pyrrolidin-2-one. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:7661-33-8) here.

The first example of synthesis of N-substituted lactams I (R = Ph, 4-(propan-2-yl)phenyl, 2H-1,3-benzodioxol-5-yl, naphthalen-2-yl, etc.; n = 1,2,3) and N-(p-tolyl)isoindolin-2-one via an acceptorless dehydrogenative coupling of diols HO(CH2)2(CH2)nCH2OH and [2-(hydroxymethyl)phenyl]methanol with primary amines RNH2 in one step, which was enabled by combining Ru3(CO)12 with a hybrid N-heterocyclic carbene-phosphine-phosphine ligand as the catalyst have been reported.

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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: 7661-33-8, is researched, SMILESS is O=C1N(C2=CC=C(Cl)C=C2)CCC1, Molecular C10H10ClNOJournal, Synlett called Facile CuI-catalyzed arylation of azoles and amides using simple enaminones as efficient ligands, Author is Cheng, Cungui; Sun, Gonglei; Wan, Jieping; Sun, Cuirong, the main research direction is azole aryl halide arylation copper iodide dimethylaminopropenone hydroxyphenyl; arylated azole preparation; aryl halide amide arylation copper iodide dimethylaminopropenone hydroxyphenyl; amide arylated preparation; copper iodide arylation catalyst; dimethylaminopropenone hydroxyphenyl catalytic arylation ligand.Safety of 1-(4-Chlorophenyl)pyrrolidin-2-one.

(E)-3-(Dimethylamino)-1-(2-hydroxyphenyl)prop-2-en-1-one was found to be an excellent ligand for copper-catalyzed N-arylation of azoles and amides with aryl halides under mild conditions. The reaction took place at 82 °C in MeCN with broad functional-group compatibility. A combination of the ligand and CuI proved to be an efficient catalytic system to promote the coupling reactions of aryl halides with azoles and amides.

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Name: 1-(4-Chlorophenyl)pyrrolidin-2-one. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: 1-(4-Chlorophenyl)pyrrolidin-2-one, is researched, Molecular C10H10ClNO, CAS is 7661-33-8, about Lactams. VIII. Conformation of N-aryl lactams. Author is Manhas, Maghar S.; Jeng, Stella J.; Bose, Ajay K..

N-Aryl β-lactams were characterized by strong uv maximum at about 250 mμ. Some N-aryl γ-lactams also show similar absorption maximum but heavily substituted γ-lactams or N-phenyl δ-lactam display only low absorption in this region. A study of uv and N.M.R. spectra indicates that in N-aryl β-lactams, the heterocyclic ring and the three valences of N are planar and the N-aryl ring lies in the plane of the β-lactam. This planarity as well as the strong uv absorption are the result of an extended conjugation between the aryl ring and the amide function. Ortho substitution on the aryl ring causes a slight departure from this planarity and reduces the intensity of the uv absorption. In case of N-aryl γ-lactams, ortho substitution on the aryl ring causes enough departure from planarity to eliminate altogether the absorption maximum near 250 mμ. 22 references.

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The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: 1-(4-Chlorophenyl)pyrrolidin-2-one( cas:7661-33-8 ) is researched.Reference of 1-(4-Chlorophenyl)pyrrolidin-2-one.Prince, Robin J.; Gao, Fang; Pazienza, Jessica E.; Marx, Isaac E.; Schulz, Jurgen; Hopkins, Brian T. published the article 《Utilization of Cyclic Amides as Masked Aldehyde Equivalents in Reductive Amination Reactions》 about this compound( cas:7661-33-8 ) in Journal of Organic Chemistry. Keywords: cyclic amide masked aldehyde equivalent reductive amination. Let’s learn more about this compound (cas:7661-33-8).

An operationally simple protocol has been discovered that couples primary or secondary amines with N-aryl-substituted lactams to deliver differentiated diamines in moderate to high yields. The process allows for the partial reduction of a lactam in the presence of Cp2ZrHCl (Schwartz’s reagent), followed by a reductive amination between the resulting hemiaminal and primary or secondary amine. These reactions can be telescoped in a one-pot fashion to significantly simplify the operation. The scope of amines and substituted lactams of various ring sizes was demonstrated through the formation of a range of differentiated diamine products. Furthermore, this methodol. was expanded to include N-aryl pyrrolidinone substrates with an enantiopure ester group at the 5-position, and α-amino piperidinones were prepared with complete retention of stereochem. information. The development of this chem. has enabled the consideration of lactams as useful synthons.

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So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic.Zhukovsky, Daniil; Dar’in, Dmitry; Kantin, Grigory; Krasavin, Mikhail researched the compound: 1-(4-Chlorophenyl)pyrrolidin-2-one( cas:7661-33-8 ).Application of 7661-33-8.They published the article 《Synthetic Exploration of α-Diazo γ-Butyrolactams》 about this compound( cas:7661-33-8 ) in European Journal of Organic Chemistry. Keywords: diazobutyrolactam pyrrolinone preparation; alc oxalylation hydride shift dimerization oxygen hydrogen insertion. We’ll tell you more about this compound (cas:7661-33-8).

Diazo transfer reaction onto γ-butyrolactams (activated by α-ethyloxalylation) gave rare α-diazo-γ-butyrolactams. Decomposition of the latter by Rh2(OAc)4 in the presence of alcs. and water gave products of O-H insertion of the resp. metal-cabene species. Silver triflate (1 mol%) was found to convert the investigated γ-butyrolactams into 1,5-dihydro-2H-pyrrol-2-ones which represent versatile building blocks. Particular instability was noted for α-diazo γ-butyrolactams bearing alkyl or o-substituted aryl substituents on the nitrogen atom. These were found to dimerize in solution or upon storage at room temperature to give fully conjugated bis-hydrazones along with the loss of a nitrogen mol.

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Category: alcohols-buliding-blocks. So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic. Compound: 1-(4-Chlorophenyl)pyrrolidin-2-one, is researched, Molecular C10H10ClNO, CAS is 7661-33-8, about Hydrogen bonding of pyrrole, indole and carbazole with substituted 1-phenyl-2-pyrrolidinones.

The equilibrium constants (K) for the 1:1 H-bonded complexes between I (R = Me, Ph, substituted Ph) with pyrrole, indole, and carbazole were determined in CCl4 by IR. Hammett LFER were observed for each K and Δ υNH (the difference between pores and associated NH stretch). I (R = Me) is a stronger H acceptor than I (R = Ph, substituted Ph). The proton donor ability increases in the order; pyrrole < indole < carbazole. The ΔG°, ΔH°, ΔS° for the complexation are determined I hope my short article helps more people learn about this compound(1-(4-Chlorophenyl)pyrrolidin-2-one)Category: alcohols-buliding-blocks. Apart from the compound(7661-33-8), you can read my other articles to know other related compounds.

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