Construction of 2, 3, 4, 5-tetrahydro-1, 2, 4-triazines via [4+ 2] cycloaddition of α-halogeno hydrazones to imines

HW Zhao, HL Pang, YD Zhao, YY Liu, LJ Zhao… - RSC …, 2017 - pubs.rsc.org
Construction of 2,3,4,5-tetrahydro-1,2,4-triazines via [4 + 2] cycloaddition of α-halogeno
hydrazones to imines - RSC Advances (RSC Publishing) DOI:10.1039/C6RA27767E Royal …

Convenient synthesis of 2-alkylamino-6-carboxy-5, 7-diarylcyclopenteno [1, 2-b] pyridines via direct acylamination with imidoyl chlorides

H Takahashi, T Fukami, H Kojima, T Yamakawa… - Tetrahedron, 2005 - Elsevier
A robust synthetic method for 2-alkylamino-6-carboxy-5, 7-diarylcyclopenteno [1, 2-b]
pyridines via acylamination at the alpha position of the functionalized pyridine system has …

Organocatalyzed Formal [4+ 2] Cycloaddition of in situ Generated Azoalkenes with Arylacetic Acids: An Efficient Approach to the Synthesis of 4, 5‐Dihydropyridazin‐3 …

X Li, K Gai, Z Yuan, J Wu, A Lin… - Advanced Synthesis & …, 2015 - Wiley Online Library
Abstract An unprecedented [4+ 2] cycloaddition of in situ generated azoalkenes with
arylacetic acids has been developed under the catalysis of isothiourea. The reaction …

Application of Cyclohexane‐1, 3‐diones in the Synthesis of Six‐Membered Nitrogen‐Containing Heterocycles

D Sharma, M Kumar, S Kumar, A Basu… - …, 2022 - Wiley Online Library
Abstract Cyclohexane‐1, 3‐dione and its derivatives are imperative precursors in synthetic
organic chemistry as they are useful intermediates for the synthesis of a wide range of …

Access to Pyridyl-Substituted 1,3,5-Triazines from 4H-Pyrido[1,3]oxazin-4-ones via a Cyclocondensation Process

LL Falher, O Ben Ayad, O Ziyaret… - The Journal of …, 2014 - ACS Publications
Pyridyl-substituted 1, 3, 5-triazines were synthesized in good to excellent yields via an
unprecedented one-step cyclocondensation of 4 H-pyrido [1, 3] oxazin-4-ones with amidines …

Synthesis of annelated pyridines from 1, 5-diketone equivalents using cupric acetate and ammonium acetate

TW Bell, SD Rothenberger - Tetrahedron letters, 1987 - Elsevier
Tetrahedron Letters,Vol.28,No.41,pp 4817-4820,1987 0040-4039/87 $3.00 + .OO printed in Great
Britain Perqamon Journals Ltd. SYNT Page 1 Tetrahedron Letters,Vol.28,No.41,pp …

Synthesis of 2-pyridylpyridines via aza-Diels–Alder reactions between 3-pyridyl-1, 2, 4-triazines and some vinyl alkanoates

T Shintou, F Ikeuchi, H Kuwabara, K Umihara… - Chemistry …, 2005 - academic.oup.com
Synthesis of 2-Pyridylpyridines via Aza-Diels--Alder Reactions between 3-Pyridyl-1,2,4-triazines
and Some Vinyl Alkanoates Page 1 Synthesis of 2-Pyridylpyridines via Aza-Diels–Alder …

Synthesis of pyridone and pyridine rings by [4+ 2] hetero-cyclocondensation

A Robin, K Julienne, JC Meslin, D Deniaud - Tetrahedron letters, 2004 - Elsevier
Synthesis of pyridone and pyridine rings by [4+2] hetero-cyclocondensation - ScienceDirect
Skip to main contentSkip to article Elsevier logo Journals & Books Search RegisterSign in View …

Synthesis of 2,5‐bis‐arylpyridines by [4 + 2] cycloaddition of 1,4‐bis aryl‐2‐aza‐1,3‐butadienes with electron‐poor dienophiles

JL Paparin, C Crevisy, R Gree… - Journal of Heterocyclic …, 2000 - Wiley Online Library
Abstract Tetrahydropyridines 4a, 4b, 4c and pyridines 7a, 7b, 7c, 9a, 9b, 9c were
synthesized by a [4+ 2] cycloaddition between 1, 4‐bis aryl‐2‐aza‐1, 3‐butadienes and …

Efficient one-pot synthesis of 2-oxo-1, 9a-dihydro-2H-pyrido [1, 2-a] pyrimidine derivatives

M Adib, H Yavari, M Mollahosseini - Tetrahedron letters, 2004 - Elsevier
Efficient one-pot synthesis of 2-oxo-1,9a-dihydro-2H-pyrido[1,2-a]pyrimidine derivatives -
ScienceDirect Skip to main contentSkip to article Elsevier logo Journals & Books Search …