Category: 7661-33-8

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 1-(4-Chlorophenyl)pyrrolidin-2-one(SMILESS: O=C1N(C2=CC=C(Cl)C=C2)CCC1,cas:7661-33-8) is researched.Electric Literature of C10H14N2O. The article 《Interception of amide ylides with sulfonamides: synthesis of (E)-N-sulfonyl amidines catalyzed by Zn(OTf)2》 in relation to this compound, is published in Chemical Communications (Cambridge, United Kingdom). Let’s take a look at the latest research on this compound (cas:7661-33-8).

An efficient method was reported for the synthesis of (E)-N-sulfonyl amidines such as I [R1 = H, Me, Ph, etc.; R2 = Me, Ph, 2-thienyl, etc.; R3 = Me, i-Pr, Ph, etc.; R1R3 = (CH2)2, (CH2)3; R2R3 = (CH2)4, (CH2)5, (CH2)2O(CH2)2, etc.; R4 = Ph, 4-MeC6H4, 2-naphthyl, etc.] in good yields with excellent stereoselectivity via Zn-catalyzed intermol. condensation reaction between sulfonamides and various amides. The wide substrate scope, exceptional functional group tolerance, operational simplicity and neutral reaction conditions made this mechanistically novel method well suited for preparing amidine compounds I.

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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, Suomen Kemistilehti B called Dipole moments of substituted 1-phenyl-2-pyrrolidones, Author is Virtanen, P. Olavi I.; Ruostesuo, Pirkko; Ruostesuo, Pirkko, the main research direction is dipole moment phenylpyrrolidones; phenylpyrrolidones dipole moment; pyrrolidones phenyl dipole moment; methylphenylpyrrolidones dipole moment; chlorophenylpyrrolidones dipole moment; methoxyphenylpyrrolidones dipole moment.Name: 1-(4-Chlorophenyl)pyrrolidin-2-one.

The dipole moments of 1-phenyl-2-pyrrolidone and its 2′-methyl, 3′-methyl, 4′-methyl, 2′-chloro, 3′-chloro, 4′-chloro, 2′-methoxy, 3′-methoxy, and 4′-methoxy derivatives were measured in dioxane at 30° and the dipole moments of the 1st 4 compounds also in cyclohexane at 30°. The dipole moments were larger in dioxane than in cyclohexane. The dipole moments of all the compounds except 1-(3-methoxyphenyl)-2-pyrrolidone and 1-(4-methoxyphenyl)-2-pyrrolidone agree with the values calculated by applying Eyring’s treatment and assuming free rotation of the pyrrolidonyl group about the bond joining it to the aromatic ring.

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Reference of 1-(4-Chlorophenyl)pyrrolidin-2-one. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 1-(4-Chlorophenyl)pyrrolidin-2-one, is researched, Molecular C10H10ClNO, CAS is 7661-33-8, about Selective synthesis of pyrrolidin-2-ones and 3-iodopyrroles via the ring contraction and deformylative functionalization of piperidine derivatives. Author is Wang, Fang; Zhang, Xinying; He, Yan; Fan, Xuesen.

In this paper, a selective synthesis of pyrrolidin-2-ones and 3-iodopyrroles via the cascade reactions of N-substituted piperidines is presented [e.g., N-phenylpiperidine → N-phenyl-2-pyrrolidinone (58%) in presence of Cu(OAc)2/KI/Oxone/O2 in MeCN and N-phenylpiperidine → 3-iodo-N-phenylpyrrole (65%) in presence of Cu(OAc)2/I2/DMAP/O2 in MeCN]. Mechanistically, the formation of pyrrolidin-2-ones involves a domino process including the in situ formation of pyrrolidine-2-carbaldehyde followed by carboxylic acid formation, decarboxylation and ipso-oxidation On the other hand, 3-iodopyrroles are believed to be formed via the initial generation of pyrrolidine-2-carbaldehyde followed by carboxylic acid formation, decarboxylation, dehydrogenation, iodination and aromatization. Interestingly, either pyrrolidin-2-ones or 3-iodopyrroles could be obtained selectively from the same substrates, and the selectivity was easily tuned by using a specific oxidant and additive.

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Formula: C10H10ClNO. 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 Mild and Efficient Cobalt-Catalyzed Cross-Coupling of Aliphatic Amides and Aryl Iodides in Water. Author is Tan, Bryan Yong-Hao; Teo, Yong-Chua.

A convenient protocol for the C-N cross-coupling of aliphatic amides and iodobenzene is demonstrated using a simple and inexpensive Co(C2O4)·2H2O/N,N’-dimethylethylenediamine (DMEDA) catalytic system in water. Good yields of N-arylated products I [R1 = Pr, i-Pr, Bu, etc; R2 = Ph, 2-F-C6H4, 4-Me-C6H4, etc.] were isolated (up to 85%) and the protocol has been successfully applied to the synthesis of the anticancer drug, flutamide.

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SDS of cas: 7661-33-8. 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-(4-Chlorophenyl)pyrrolidin-2-one, is researched, Molecular C10H10ClNO, CAS is 7661-33-8, about Cyclization of N-arylcyclopropanecarboxamides into N-arylpyrrolidinones-2 under electron ionization and in the condensed phase. Author is Lebedev, A. T.; Mazur, D. M.; Kudelin, A. I.; Fedotov, A. N.; Gloriozov, I. P.; Ustynyuk, Yu. A.; Artaev, V. B..

Mass spectrometry is known as an excellent method to predict the behavior of organic compounds in solution The behavior of organic compounds in the gas-phase inside an ion source of a mass spectrometer allows their intrinsic properties to be defined, avoiding the influence of intermol. interactions, counter ions and solvent effects. Arylpyrrolidinones-2 were obtained by condensed phase synthesis from the corresponding N-arylcyclopropanecarboxamides. Electron ionization (EI) with accurate mass measurements by high-resolution time-of-flight mass-spectrometry and quantum chem. calculations were used to understand the behavior of the mol. radical cations of N-arylcyclopropanecarboxamides and N-arylpyrrolidinones-2 in the ion source of a mass spectrometer. The geometries of the mols., transition states, and intermediates were fully optimized using DFT-PBE calculations Fragmentation schemes, ion structures, and possible mechanisms of primary isomerization were proposed for isomeric N-arylcyclopropanecarboxamides and N-arylpyrrolidinones-2. Based on the fragmentation pattern of the N-arylcyclopropanecarboxamides, isomerization of the original M+· ions into the M+· ions of the N-arylpyrrolidinones-2 was shown to be only a minor process. On the contrary, this cyclization proceeds easily in the condensed phase in the presence of the Bronsted acids. Based on the exptl. data and quantum chem. calculations the principal mechanism of decomposition of the mol. ions of N-arylcyclopropanecarboxamides involves their direct fragmentation without any rearrangements. An alternative mechanism is responsible for the isomerization of a small portion of the higher energy mol. ions into the corresponding N-arylpyrrolidinones-2 ions.

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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: 7661-33-8, is researched, Molecular C10H10ClNO, about Scope and selectivity in palladium-catalyzed directed C-H bond halogenation reactions, the main research direction is haloarom compound regioselective preparation; aromatic compound halogenation palladium.Application of 7661-33-8.

Palladium-catalyzed ligand directed C-H activation/halogenation reactions have been extensively explored. Both the nature of the directing group and the substitution pattern on the arene ring of the substrate lead to different reactivity profiles, and often different and complementary products, in the presence and absence of the catalyst.

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Related Products of 7661-33-8. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 1-(4-Chlorophenyl)pyrrolidin-2-one, is researched, Molecular C10H10ClNO, CAS is 7661-33-8, about Utilization of Cyclic Amides as Masked Aldehyde Equivalents in Reductive Amination Reactions. Author is Prince, Robin J.; Gao, Fang; Pazienza, Jessica E.; Marx, Isaac E.; Schulz, Jurgen; Hopkins, Brian T..

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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Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Article, Research Support, Non-U.S. Gov’t, Journal of Developmental Physiology called Decrease in intestinal permeability to polyethylene glycol 1000 during development in the pig, Author is Westroem, B. R.; Tagesson, C.; Leandersson, P.; Folkesson, H. G.; Svendsen, J., which mentions a compound: 7661-33-8, SMILESS is O=C1N(C2=CC=C(Cl)C=C2)CCC1, Molecular C10H10ClNO, Reference of 1-(4-Chlorophenyl)pyrrolidin-2-one.

Changes in intestinal permeability during postnatal development in the pig were investigated by using different-sized polyethylene glycols (PEGs) in the Mr 766-1338 range (PEG 1000) as permeability probes. Pigs of varying age, newborn (0 h), 36-45 h old, and 22-28 days old, were gavage-fed PEG 1000 together with the macromol. markers bovine serum albumin, ovalbumin, or FITC-labeled dextran 70,000. The 4-h blood serum concentrations of the different markers were determined and taken as an estimate of their intestinal transmission. In the newborn pigs, high serum levels of PEGs were obtained, concomitant with high serum levels of bovine serum albumin and FITC-dextran. After intestinal macromol. closure in the 36-45 h-old pigs, lower serum PEG levels were found, especially of those with a Mr > 1100 Da. In the 22-28 day-old pigs, PEG levels were reduced to ≤10% of those in the 36-45-h-old pigs, with the levels decreasing markedly with increasing mol. size. These results show that there is a correlation between the intestinal permeability of PEGs, especially those >1100 Da, and macromols. in the newborn pig around intestinal closure, suggesting that such PEGs traverse the gut by the macromol. route. During later development, further intestinal maturation results in a markedly reduced permeability to PEG 1000.

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Safety of 1-(4-Chlorophenyl)pyrrolidin-2-one. 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 Ruthenium-catalyzed synthesis of N-substituted lactams by acceptorless dehydrogenative coupling of diols with primary amines.

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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Virtanen, P. Olavi I.; Ruostesuo, Pirkko; Ruostesuo, Pirkko published an article about the compound: 1-(4-Chlorophenyl)pyrrolidin-2-one( cas:7661-33-8,SMILESS:O=C1N(C2=CC=C(Cl)C=C2)CCC1 ).Reference of 1-(4-Chlorophenyl)pyrrolidin-2-one. 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:7661-33-8) through the article.

The dipole moments of 1-phenyl-2-pyrrolidone and its 2′-methyl, 3′-methyl, 4′-methyl, 2′-chloro, 3′-chloro, 4′-chloro, 2′-methoxy, 3′-methoxy, and 4′-methoxy derivatives were measured in dioxane at 30° and the dipole moments of the 1st 4 compounds also in cyclohexane at 30°. The dipole moments were larger in dioxane than in cyclohexane. The dipole moments of all the compounds except 1-(3-methoxyphenyl)-2-pyrrolidone and 1-(4-methoxyphenyl)-2-pyrrolidone agree with the values calculated by applying Eyring’s treatment and assuming free rotation of the pyrrolidonyl group about the bond joining it to the aromatic ring.

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