71103-77-0Relevant academic research and scientific papers
Novel Pyrimidines with Extended π-Conjugated Chains
Harutyunyan,Panosyan,Danagulyan
, p. 1952 - 1957 (2021/01/13)
Abstract: The reactions of benzamidine, 4-methyl-, 4-iso-butoxy-, and 4-butoxybenzamidine hydrochlorides with chalcone and substituted chalcones in alcohol in the presence of KOH yielded 2,4,6-triarylpyrimidines. 4-Phenyl-2,6-bis(4-methylphenyl)pyrimidine
Preparation method of 2,4,6-triaryl-substituted-pyrimidine compounds
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Paragraph 0044-0047, (2019/10/01)
The invention discloses a preparation method of 2,4,6-triaryl-substituted-pyrimidine compounds. The preparation method includes the following steps that aromatic aldehyde compounds shown in the formula (I), aromatic ketone compounds shown in the formula (
Oxidative Coupling with Zr(IV) Supported by a Noninnocent Anthracene-Based Ligand: Application to the Catalytic Cotrimerization of Alkynes and Nitriles to Pyrimidines
Low, Choon Heng,Rosenberg, Jeffrey N.,Lopez, Marco A.,Agapie, Theodor
supporting information, p. 11906 - 11910 (2018/09/25)
We report the synthesis and reactivity of Zr complexes supported by a 9,10-anthracenediyl-linked bisphenoxide ligand, L. ZrIVLBn2 (1) undergoes facile photolytic reduction with concomitant formation of bibenzyl and ZrIVL(THF)3 (2), which displays a two-electron reduced anthracene moiety. Leveraging ligand-stored reducing equivalents, 2 promotes the oxidative coupling of internal and terminal alkynes to isolable zirconacyclopentadiene complexes, demonstrating the reversible utilization of anthracene as a redox reservoir. With diphenylacetylene under CO, cyclopentadienone is formed stoichiometrically. 2 is competent for the catalytic formation of pyrimidines from alkynes and nitriles. Mechanistic studies suggest that selectivity for pyrimidine originates from preferred formation of an azazirconacyclopentadiene intermediate, which reacts preferentially with nitriles over alkynes.
Facile synthesis of triarylpyrimidines with microwave-irradiated reactions of N-phenacylpyridinium chloride
Wu, Ping,Cai, Xi-Mei,Wang, Qi-Fang,Yan, Chao-Guo
, p. 223 - 229 (2007/10/03)
In a system of ammonium acetate and acetic acid under microwave irradiation, N-phenacylpyridinium chloride 1 reacted with 2 mol of aromatic aldehydes 2a-h to give 2,4,6-triarylpyrimidine 3a-h, reacted with pyridinecarboxaldehyde 4a-c and acetophenone 5 to yield bipyridine derivatives 6a-c. The structure of the products was characterized with 1H NMR, 13C NMR, IR, and mass spectroscopy. Copyright Taylor & Francis Group, LLC.
