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1.
World J Psychiatry ; 14(9): 1346-1353, 2024 Sep 19.
Artículo en Inglés | MEDLINE | ID: mdl-39319237

RESUMEN

BACKGROUND: Schizophrenic patients are prone to violence, frequent recurrence, and difficult to predict. Emotional and behavioral abnormalities during the onset of the disease, resulting in active myocardial enzyme spectrum. AIM: To explored the expression level of myocardial enzymes in patients with schizophrenia and its predictive value in the occurrence of violence. METHODS: A total of 288 patients with schizophrenia in our hospital from February 2023 to January 2024 were selected as the research object, and 100 healthy people were selected as the control group. Participants' information, clinical data, and laboratory examination data were collected. According to Modified Overt Aggression Scale score, patients were further divided into the violent (123 cases) and non-violent group (165 cases). RESULTS: The comparative analysis revealed significant differences in serum myocardial enzyme levels between patients with schizophrenia and healthy individuals. In the schizophrenia group, the violent and non-violent groups also exhibited different levels of serum myocardial enzymes. The levels of myocardial enzymes in the non-violent group were lower than those in the violent group, and the patients in the latter also displayed aggressive behavior in the past. CONCLUSION: Previous aggressive behavior and the level of myocardial enzymes are of great significance for the diagnosis and prognosis analysis of violent behavior in patients with schizophrenia. By detecting changes in these indicators, we can gain a more comprehensive understanding of a patient's condition and treatment.

2.
J Org Chem ; 2024 Sep 19.
Artículo en Inglés | MEDLINE | ID: mdl-39298438

RESUMEN

A highly effective external photocatalyst- and additive-free method for the phosphorylation of 3,4-dihydroquinoxalin-2(1H)-ones to produce phosphorylated dihydroquinoxalin-2(1H)-ones has been reported. A wide variety of phosphorylated products were formed in good to excellent yields. Preliminary mechanistic studies reveal that the phosphorylation process involves an EnT process, a SET process, a HAT process, and a deprotonation process.

3.
J Org Chem ; 89(18): 13782-13788, 2024 Sep 20.
Artículo en Inglés | MEDLINE | ID: mdl-39219441

RESUMEN

An efficient photocatalytic protocol combining heterogeneous semiconductors as photocatalysts and NHPI as a redox reagent was disclosed. Under this protocol, 3-sulfonylquinolines were formed in up to 92% yield via a multicomponent radical cascade annulation. Good substituent tolerance and gram-scale reaction showed the potential in fine chemicals modification and pharmaceutical synthesis.

4.
J Org Chem ; 89(17): 12693-12700, 2024 Sep 06.
Artículo en Inglés | MEDLINE | ID: mdl-39186693

RESUMEN

FeTiO3 has emerged as an interesting semiconductor photocatalyst in organic synthesis. We herein describe a visible-light-induced semiheterogeneous strategy for the synthesis of 3-(2-oxoethyl)indolin-2-ones with moderate to good yields and good functional group compatibility using recyclable FeTiO3 as a photocatalyst and NHPI as a redox catalyst.

5.
J Org Chem ; 89(15): 10654-10659, 2024 Aug 02.
Artículo en Inglés | MEDLINE | ID: mdl-39018181

RESUMEN

With an inexpensive and commercially available WO3 semiconductor as the heterogeneous photocatalyst, a catalytic amount of NPh3 as the single-electron donor, and ambient air as the single-electron acceptor and oxygen source, the semiheterogeneous photocatalytic hydroxylation of alkyl and aryl boronic acids was developed. A broad range of hydroxylated compounds can be obtained in excellent yields.

6.
J Org Chem ; 89(13): 9543-9550, 2024 Jul 05.
Artículo en Inglés | MEDLINE | ID: mdl-38874168

RESUMEN

A visible-light-initiated C-H trifluoromethylation of quinoxalin-2(1H)-ones was established using a Z-scheme V2O5/g-C3N4 heterojunction as a recyclable photocatalyst in an inert atmosphere at room temperature under additive-free and mild conditions. A variety of trifluoromethylated quinoxalin-2-(1H)-one derivatives were heterogeneously generated in moderate to high yields, exhibiting good functional group tolerance. Remarkably, the recyclable V2O5/g-C3N4 catalyst could be reused five times with a slight loss of catalytic activity.

8.
J Org Chem ; 89(9): 6117-6125, 2024 May 03.
Artículo en Inglés | MEDLINE | ID: mdl-38654588

RESUMEN

The first paired electrolysis-enabled arylation of quinoxalin-2(1H)-ones was achieved using cyanoarenes as the arylation reagents. A variety of 3-arylquinoxalin-2(1H)-ones with various important functional groups were obtained in moderate to good yields under metal- and chemical oxidant-free conditions. With a pair of reductive and oxidative processes occurring among the substrates and reaction intermediates, the power consumption can be dramatically reduced.

9.
Chemistry ; 30(41): e202304234, 2024 Jul 19.
Artículo en Inglés | MEDLINE | ID: mdl-38644695

RESUMEN

With both TEMPO and O2 (in air) as the homogeneous redox mediators, BiBrO as the heterogeneous semiconductor photocatalyst, the first example of semi-heterogeneous photocatalytic decarboxylative phosphorylation of N-arylglycines with diarylphosphine oxides was established. A series of α-amino phosphinoxides were efficiently synthesized.

10.
J Org Chem ; 89(6): 4113-4119, 2024 Mar 15.
Artículo en Inglés | MEDLINE | ID: mdl-38448366

RESUMEN

The first example of an electrochemical multicomponent synthesis of selenium-containing compounds with inexpensive and abundant elemental selenium as the selenating reagent was developed. A variety of selenazol-2-amines were constructed in high yields with good functional group tolerance under metal-free and chemical oxidant-free conditions.

11.
Chem Commun (Camb) ; 59(94): 14029-14032, 2023 Nov 23.
Artículo en Inglés | MEDLINE | ID: mdl-37964611

RESUMEN

With both ferrocene and air as the redox catalysts, for the first time, the low-cost natural ilmenite (FeTiO3) was successfully used for photocatalytic bond formations. Under the assistance of a traceless H-bond, and HCHO as the methylene reagent, a variety of imidazo[1,5-a]quinoxalinones were semi-heterogeneously photosynthesized in high yields with good functional group compatibility.

12.
J Org Chem ; 88(24): 16790-16796, 2023 Dec 15.
Artículo en Inglés | MEDLINE | ID: mdl-38016176

RESUMEN

A general and efficient method for the synthesis of various selanyl phenanthrenes/polycyclic heteroaromatics through the electrophilic annulation of 2-alkynyl biaryls with diorganyl diselenides under metal-free and mild conditions was established. The sulfanyl phenanthrene was also obtained in moderate yields.

13.
ChemSusChem ; 16(19): e202300523, 2023 Oct 06.
Artículo en Inglés | MEDLINE | ID: mdl-37728196

RESUMEN

A green and practical method for the electrochemical synthesis of tetrahydroimidazo[1,5-a]quinoxalin-4(5H)-ones through the three-component reaction of quinoxalin-2(1H)-ones, N-arylglycines and paraformaldehyde was reported. In this strategy, EtOH played dual roles (eco-friendly solvent and waste-free pre-catalyst) and the in situ generated ethoxide promoted triple sequential deprotonations.

14.
J Org Chem ; 88(13): 8360-8368, 2023 Jul 07.
Artículo en Inglés | MEDLINE | ID: mdl-37262353

RESUMEN

A 1,2,3,5-tetrakis(carbazol-9-yl)-4,6-dicyanobenzene (4-CzIPN)-photocatalyzed cascade arylation/cyclization reaction of 2-isocyanobiaryls and iodonium ylides was established for the synthesis of 6-arylated phenanthridines. This is the first example of employing iodonium ylides as aryl radical sources in a visible-light-induced radical cascade cyclization reaction.


Asunto(s)
Luz , Fenantridinas , Ciclización
16.
J Org Chem ; 88(4): 2288-2295, 2023 Feb 17.
Artículo en Inglés | MEDLINE | ID: mdl-36738288

RESUMEN

A simple and practical electron donor-acceptor (EDA) strategy to synthesize various 3-alkylated coumarins from easily available coumarins and naturally abundant carboxylic acids under photocatalyst-, oxidant-, and additive-free and mild conditions is reported. Using Na2S as the catalytic electron donor, a series of primary, secondary, and tertiary carbon radicals can be efficiently generated, and the EDA complex can be regenerated without an alkaline additive.

17.
Molecules ; 28(3)2023 Feb 01.
Artículo en Inglés | MEDLINE | ID: mdl-36771059

RESUMEN

The first example of paired electrolysis-enabled cyanation of diaryl diselenides, with KSCN as the green cyanating agent, has been developed. A broad range of aryl selenocyanates can be efficiently synthesized under chemical-oxidant- and additive-free, energy-saving and mild conditions.

18.
Graefes Arch Clin Exp Ophthalmol ; 261(1): 223-231, 2023 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-36029306

RESUMEN

BACKGROUND: SFTs are thought to have an unpredictable clinical course and currently have no recognized prognostic criterion. Our study aimed to determine the relationship between clinicopathological characteristics and the prognosis of patients with orbital SFTs. METHODS: The clinicopathological features of these patients were extracted from clinical records. The relationships between these features and prognosis were analysed. RESULTS: The positive rates of CD34, CD99, Blc2, and STAT6 expression were 90.3%, 90.3%, 83.9%, and 100%, respectively. The tumour recurrence rate was 38.7%. A higher recurrence rate was observed in patients with Ki67 index ≥ 5 (56.25% vs. 20%, P = 0.038). CONCLUSION: A Ki67 index ≥ 5 was an effective parameter for predicting tumour recurrence of orbital SFTs. Close follow-up is needed for these patients.


Asunto(s)
Hemangiopericitoma , Síndrome de Trombocitopenia Febril Grave , Tumores Fibrosos Solitarios , Humanos , Antígeno Ki-67 , Recurrencia Local de Neoplasia/epidemiología , Recurrencia Local de Neoplasia/patología , Tumores Fibrosos Solitarios/diagnóstico , Tumores Fibrosos Solitarios/cirugía , Tumores Fibrosos Solitarios/metabolismo , Hemangiopericitoma/patología , Biomarcadores de Tumor
19.
Org Biomol Chem ; 21(2): 370-374, 2023 01 04.
Artículo en Inglés | MEDLINE | ID: mdl-36515252

RESUMEN

A concise and efficient ring-opening difluorination strategy was developed for the synthesis of highly functionalized hydroxy-containing α,α-difluoro-ß-ketoamides from the one-pot multicomponent reaction of 4-aminocoumarins, NFSI, and water in dimethyl carbonate (DMC) as a green solvent. The reactions were smoothly achieved under visible light irradiation in air at room temperature without the addition of any other external photocatalysts. With this protocol, various α,α-difluoro-ß-ketoamides were successfully synthesized under mild conditions (25 examples, 73-91% yields). This transition-metal-free synthetic procedure shows good functional group compatibility and attractive practical potential for large-scale synthesis.


Asunto(s)
Amidas , Luz , Solventes
20.
Org Biomol Chem ; 20(43): 8501-8505, 2022 Nov 09.
Artículo en Inglés | MEDLINE | ID: mdl-36268850

RESUMEN

The first example of the electrocatalytic multicomponent synthesis of 4-chloro/bromo/iodopyrazoles from hydrazines, acetylacetones and sodium halides under chemical oxidant- and external electrolyte-free conditions has been developed. Sodium halides played a dual role as a halogenation reagent and a supporting electrolyte. Mechanism studies revealed that the bromination reaction proceeded via an ionic pathway, whereas both chlorination and iodination proceeded via a radical pathway.


Asunto(s)
Halógenos , Sodio , Halogenación , Oxidantes , Iones
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