Cited by Five-membered ring systems with O and N atoms

Visible-light-induced [1,3]-brook rearrangements of α-ketoacylsilanes and their subsequent trapping in a tandem annulation with 1,3,5-triazinanes and azomethine imines DOI

Zhong Zhang,

Sirui Wu,

Yuqiao Zhou

et al.

Organic Chemistry Frontiers, Journal Year: 2024, Volume and Issue: 11(11), P. 3250 - 3256

Published: Jan. 1, 2024

An unusual visible-light-induced [1,3]-brook rearrangement of α-ketoacylsilanes for cascade cyclization with 1,3,5-triazinanes and C , N -cyclic azomethine imines has been realized to assemble various β-lactams pyrazolidinone scaffolds.

Language: Английский

Citations

Substituent-controlled divergent cyclization reactions of benzo[c][1,2]dithiol-3-ones and hexahydro-1,3,5-triazines DOI

Bohao Zhang,

Sifan He,

Na Dong

et al.

Organic Chemistry Frontiers, Journal Year: 2024, Volume and Issue: 11(12), P. 3302 - 3307

Published: Jan. 1, 2024

An unprecedented metal-free divergent cyclization reaction of benzo[ c ][1,2]dithiol-3-ones with hexahydro-1,3,5-triazines to assemble six- and eight-membered N-containing heterocycles has been developed.

Language: Английский

Citations

[2+2+2] Cycloadditions DOI

Ángel Manu Martínez, Gema Domı́nguez, Javier Pérez‐Castells

et al.

Elsevier eBooks, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Citations

[2+2+1+1] Cycloaddition Reaction of 1,3,5‐Triazinanes with Methylene Compounds: Approach to Hexahydropyrimidines DOI

Yu‐Ting Tian,

Ziyang Chen, Kexin Su

et al.

Advanced Synthesis & Catalysis, Journal Year: 2023, Volume and Issue: 365(22), P. 3909 - 3914

Published: Aug. 16, 2023

Abstract An acetic acid‐catalyzed [2+2+1+1] cycloaddition of 1,3,5‐triazinanes with methylene compounds was developed. This protocol provides an access to hexahydropyrimidines (HHPs) (25 examples) in 35–99% yields under mild conditions 2 hours. The potential application this method demonstrated by gram‐scale synthesis. Preliminary mechanistic investigation conducted elucidate the possible mechanism. work represents yet unknown example reaction between and active compounds.

Language: Английский

Citations

Asymmetric dearomatization of benzyl 1-naphthyl ethers via [1,3] O-to-C rearrangement DOI

Hongkun Zeng,

Gang Wen, Lili Lin

et al.

Chemical Communications, Journal Year: 2024, Volume and Issue: 60(58), P. 7507 - 7510

Published: Jan. 1, 2024

An asymmetric dearomatization reaction of benzyl 1-naphthyl ethers accelerated by a chiral N , ′-dioxide/Co( ii ) complex is disclosed. Experiment results indicated that the proceeds via tight ion-pair intermediate.

Language: Английский

Citations

Structural and Dynamic Behaviour of Heterocycles Derived from Ethylenediamines with Formaldehyde: 1,3,5-Triazinanes and Bis(imidazolidinyl)methanes DOI

Raúl Colorado‐Peralta,

Sonia A. Sánchez-Ruíz,

Angelina Flores‐Parra

et al.

Organics, Journal Year: 2023, Volume and Issue: 4(2), P. 297 - 312

Published: June 15, 2023

Formaldehyde is a simple chemical compound that used as building block in obtaining wide range of products. The versatility formaldehyde synthesis becomes evident when it reacted with N-alkylethylenediamines. Therefore, this paper reports the structure and reactivity series compounds derived from easily accessible molecules, such formaldehyde, sodium hydrosulphide, 1,3,5-triazines (1a-1d) bis(3-alkyl-imidazolidin-1-yl)methanes (2a-2d) were obtained by reaction conditions. Additionally, different proportions hydrosulphide N-benzylamine to obtain N-benzyltriazinane (3), N-benzylthiadiazinane (4) N-benzyldithiazinane (5). All these characterized analytical, spectroscopic, spectrometric techniques, melting point, solubility, one-dimensional two-dimensional nuclear magnetic resonance (13C, 1H, 15N, COSY, HETCOR, NOESY, COLOC), elemental analysis, high- low-resolution mass spectrometry, among others. structures 4 5 single-crystal X-ray diffraction. results show small variations stoichiometry conditions significantly influence products obtained.

Language: Английский

Citations

Catalytic asymmetric amination of azlactones with azobenzenes DOI

Chaoqi Ke,

Qiuhui Cao,

Yao Luo

et al.

Chemical Communications, Journal Year: 2022, Volume and Issue: 58(39), P. 5881 - 5884

Published: Jan. 1, 2022

We reported an efficient asymmetric amination of azlactones with N-aryl-N-aroyldiazenes through a chiral N,N'-dioxide-based Lewis acid catalyst. The multicoordination ability Nd(III) enabled it to simultaneously activate and locate the two reactants for N-selective addition. Hydrazine-bearing azlactone derivatives were obtained in moderate good yields high enantioselectivity.

Language: Английский

Citations

The crystal structure of N-cyclohexyl-3-hydroxy-4-methoxybenzamide, C₁₄H₁₉NO₃ DOI

Jingxiao Zhang, Xiaoxiao Zhao,

Chenyu Cai

et al.

Zeitschrift für Kristallographie - New Crystal Structures, Journal Year: 2022, Volume and Issue: 237(4), P. 543 - 545

Published: April 12, 2022

Abstract C 14 H 19 NO 3 , monoclinic, Cc (no. 9), a = 11.1235(5) Å, b 15.3724(5) c 8.1110(3) β 109.3980(10)°, V 1308.21(9) Å Z 4, R gt ( F ) 0.0300, wR ref 2 0.0703, T 170 K.

Language: Английский

Citations

Chemoselective and diastereodivergent synthesis of new spirooxindolo-pyrrolizidines and pyrrolidines stemming from unsymmetrical 1,3-bis(arylidene)tetral-2-ones: a combined experimental and theoretical study DOI

Houda Gazzeh,

Fadwa Rouatbi,

Sami Chniti

et al.

New Journal of Chemistry, Journal Year: 2022, Volume and Issue: 46(40), P. 19198 - 19212

Published: Jan. 1, 2022

An experimental and theoretical study of an efficient one-pot three-components cycloaddition reaction leading to pentacyclic dispiropyrrolizidin/pyrrolidinoxindoles endowed by four contiguous stereogenic centres with moderate good yields was reported.

Language: Английский

Citations

Five-membered ring systems with O and N atoms DOI

Franca M. Cordero, Donatella Giomi, Fabrizio Machetti

et al.

Progress in heterocyclic chemistry, Journal Year: 2023, Volume and Issue: unknown, P. 351 - 382

Published: Jan. 1, 2023

Language: Английский

Citations