Category: pyrrolines

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: 2,6-Dichloro-3-fluoropyridine, is researched, Molecular C5H2Cl2FN, CAS is 52208-50-1, about Preparation of new 2-chloro-5-fluoro-6-[(4-phenylmethyl)piperazinyl]-4-trifluoromethyl-3-nicotinic acid, the main research direction is nicotinic acid piperazinyl trifluoromethyl preparation antibacterial; fluoroacetate condensation ethyl trifluoroacetate; pyridone preparation chlorination.Recommanded Product: 52208-50-1.

The nicotinic acid (I), which could be a key intermediate for novel potential antibacterial 1,8-naphthyridine-3-carboxylic acid analogs, was prepared starting with construction of the pyridine nucleus of II by Et 2-fluoroacetate and Et 2-trifluoroacetate.

In addition to the literature in the link below, there is a lot of literature about this compound(2,6-Dichloro-3-fluoropyridine)Recommanded Product: 52208-50-1, illustrating the importance and wide applicability of this compound(52208-50-1).

Reference:
Pyrroline – Wikipedia,
1-Pyrroline | C4H7N – PubChem

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: 4045-24-3, is researched, SMILESS is COC1CCNCC1, Molecular C6H13NOJournal, Article, Angewandte Chemie, International Edition called Amine-Responsive Disassembly of AuI-CuI Double Salts for Oxidative Carbonylation, Author is Cao, Yanwei; Yang, Jian-Gong; Deng, Yi; Wang, Shengchun; Liu, Qi; Shen, Chaoren; Lu, Wei; Che, Chi-Ming; Chen, Yong; He, Lin, the main research direction is amine gold copper salt oxidative carbonylation synergistic catalyst; carbamates; double salts; oxidative carbonylation; synergistic catalysis; urea.Electric Literature of C6H13NO.

A sensitive amine-responsive disassembly of self-assembled AuI-CuI double salts was observed and its use for the synergistic catalysis was enlightened. Study of the disassembly of [Au(NHC)2][CuI2] revealed the contribution of Cu-assisted ligand exchange of N-heterocyclic carbene (NHC) by amine in [Au(NHC)2]+ and the capacity of [CuI2]- on the oxidative step. By integrating the implicative information coded in the responsive behavior and inherent catalytic functions of d10 metal complexes, a catalyst for the oxidative carbonylation of amines was developed. The advantages of this method were clearly reflected on mild reaction conditions and the significantly expanded scope (51 examples); both primary and steric secondary amines can be employed as substrates. The cooperative reactivity from Au and Cu centers, as an indispensable prerequisite for the excellent catalytic performance, was validated in the synthesis of (un)sym. ureas and carbamates.

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Reference:
Pyrroline – Wikipedia,
1-Pyrroline | C4H7N – PubChem

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: (R)-4-Hydroxydihydrofuran-2(3H)-one, is researched, Molecular C4H6O3, CAS is 58081-05-3, about Total synthesis of (+)-phrymarolin I from (+)-malic acid, the main research direction is phrymarolin I stereoselective total synthesis; furofuran ring system; lignan insecticidal haedoxan preparation.Electric Literature of C4H6O3.

(+)-Phrymarolin I (I) was stereoselectively synthesized from (R)-(+)-3-hydroxybutanolide that had been prepared via regioselective reduction of (+)-malic acid or microbial reduction of 4-tert-butoxyacetoacetate. The procedure is more efficient than the previous synthesis in terms of fewer reaction steps and the easier availability of the starting material.

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Reference:
Pyrroline – Wikipedia,
1-Pyrroline | C4H7N – PubChem

Recommanded Product: (R)-4-Hydroxydihydrofuran-2(3H)-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: (R)-4-Hydroxydihydrofuran-2(3H)-one, is researched, Molecular C4H6O3, CAS is 58081-05-3, about Glycosidic constituents from in vitro Anoectochilus formosanus.

The glycosidic constituents of whole plants of Anoectochilus formosanus propagated by tissue culture were investigated. A new compound, 2-(β-D-glucopyranosyloxymethyl)-5-hydroxymethylfuran, along with the known compounds, 3-(R)-3-β-D-glucopyranosyloxybutanolide (kinsenoside), 3-(R)-3-β-D-glucopyranosyloxy-4-hydroxybutanoic acid, 1-O-isopropyl-β-D-glucopyranoside, (R)-(+)-3,4-dihydroxybutanoic acid γ-lactone, 4-(β-D-glucopyranosyloxy)benzyl alc., (6R,9S)-9-hydroxy-megastigma-4,7-dien-3-one-9-O-β-D-glucopyranoside, and corchoionoside C were isolated.

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Reference:
Pyrroline – Wikipedia,
1-Pyrroline | C4H7N – PubChem

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, Tetrahedron called Enantiomerically pure β,γ-epoxyesters from β-hydroxylactones: synthesis of β-hydroxyesters and (-)-GABOB, Author is Larcheveque, M.; Henrot, S., which mentions a compound: 58081-05-3, SMILESS is O=C1OC[C@H](O)C1, Molecular C4H6O3, Safety of (R)-4-Hydroxydihydrofuran-2(3H)-one.

The preparation of enantiomerically pure β,γ-epoxy esters was achieved by chemoselective opening of β-hydroxybutanolides with Me3SiI followed by cyclization of the resulting iodohydrins with Ag2O. The reaction of these epoxy esters with lithio- or magnesiocuprates afforded stereochemically pure α-substituted-β-hydroxy esters. Alternatively, the title compound, (R)-H2NCH2CH(OH)CH2CO2H, was synthesized in optically pure form from the iodohydrin (R)-ICH2CH(OH)CH2CO2Et.

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Pyrroline – Wikipedia,
1-Pyrroline | C4H7N – PubChem

Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: 1-(Cyclopropanecarbonyl)indoline-5-sulfonyl chloride, is researched, Molecular C12H12ClNO3S, CAS is 879562-21-7, about Synthesis and properties of 1-acylindolinesulfonamides.Formula: C12H12ClNO3S.

Title compounds I and II were prepared by N-acylation of indoline, bromination and chlorosulfonylation (or just chlorosulfonylation), and amidation. Several properties indicative of potential pharmacol. activities were determined

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Reference:
Pyrroline – Wikipedia,
1-Pyrroline | C4H7N – PubChem

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 Copper-Catalyzed Oxalamide-Directed ortho-C-H Amination of Anilines with Alkylamines, published in 2020-07-02, which mentions a compound: 4045-24-3, mainly applied to aniline alkylamine oxalamide copper catalyst amination directing group; aromatic amine preparation, Application of 4045-24-3.

A copper-catalyzed oxalamide-directed ortho-C-H amination of anilines has been developed by using 1 atm of air as the sole oxidant. The protocol shows excellent functional group tolerance, and some heterocyclic amines including indole, benzothiophene, benzothiazole, quinoline, isoquinoline, and quinoxaline could be compatible in the reaction. The late-stage diversification of medicinal drugs demonstrates the synthetic utility of this protocol.

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Pyrroline – Wikipedia,
1-Pyrroline | C4H7N – PubChem

Electric Literature of C5H3ClFN. 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: 4-Chloro-2-fluoropyridine, is researched, Molecular C5H3ClFN, CAS is 34941-92-9, about C-O Cross-Coupling of Activated Aryl and Heteroaryl Halides with Aliphatic Alcohols. Author is Maligres, Peter E.; Li, Jing; Krska, Shane W.; Schreier, John D.; Raheem, Izzat T..

The authors describe a Pd/Josiphos catatyst system for alkoxylation of activated aryl and heteroaryl halides with primary, secondary, and select tertiary alcs. E.g., in presence of [Pd2(dba)3] and ligand CyPF-tBu (I), C-O cross-coupling of 4-chloro-2-methylquinoline and PhCH2CH2OH gave 99% aromatic ether 4-(2-phenylethoxy)-2-methylquinoline.

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Reference:
Pyrroline – Wikipedia,
1-Pyrroline | C4H7N – PubChem

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 Some 2,5- and 5,6-dihalonicotinic acids and their precursors. IV, published in 1976, which mentions a compound: 59782-89-7, Name is 2-Chloro-5-iodo-3-methylpyridine, Molecular C6H5ClIN, Quality Control of 2-Chloro-5-iodo-3-methylpyridine.

The pyridinecarboxylic acids I (R = Cl, R1 = CO2H, R2 = Cl, iodo; R = Cl, R1 = Cl, iodo, R2 = CO2H) were prepared by oxidation of I (R = Cl, R1 = Me, R2 = Cl, iodo; R = Cl, R1 = Cl, iodo, R2 = Me; resp.), which were prepared by diazotization and substitution of I (R = Cl, R1 = Me, R2 = NH2; R = Cl, R1 = NH2, R2 = Me; resp.). I (R = R1 = Cl, R2 = CO2H) and NaI gave I (R = iodo, R1 = Cl, R2 = CO2H).

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Reference:
Pyrroline – Wikipedia,
1-Pyrroline | C4H7N – PubChem

Recommanded Product: 4045-24-3. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 4-Methoxypiperidine, is researched, Molecular C6H13NO, CAS is 4045-24-3, about Nonbisphosphonate inhibitors of Plasmodium falciparum FPPS/GGPPS. Author is Kabeche, Stephanie; Aida, Jumpei; Akther, Thamina; Ichikawa, Takashi; Ochida, Atsuko; Pulkoski-Gross, Michael J.; Smith, Mark; Humphries, Paul S.; Yeh, Ellen.

A series of novel thiazole-containing amides such as I.TFA were synthesized as inhibitors of Plasmodium falciparum farnesyldiphosphate synthase (PfFPPS) and geranylgeranyldiphosphate synthase (PfGGPPS). A structure-activity relationship study of these compounds led to the identification of potent and selective PfFPPS/GGPPS inhibitors with good in vitro ADME profiles. The most promising candidate mols. were progressed to mouse in vivo PK studies and demonstrated adequate free drug exposure to warrant further investigation.

In addition to the literature in the link below, there is a lot of literature about this compound(4-Methoxypiperidine)Recommanded Product: 4045-24-3, illustrating the importance and wide applicability of this compound(4045-24-3).

Reference:
Pyrroline – Wikipedia,
1-Pyrroline | C4H7N – PubChem