نتایج جستجو برای: naphthalen

تعداد نتایج: 693  

2008
Julio Zukerman-Schpector Lucas Sousa Madureira Gisele B. Messiano Lucia M. X. Lopes Edward R. T. Tiekink

In the two, almost identical, mol-ecules in the asymmetric unit of the title compound [systematic name: (E)-3-methyl-5-(1,2,4a,5-tetra-methyl-1,2,3,4,4a,7,8,8a-octa-hydro-naphthalen-1-yl)pent-2-enoic acid], C(20)H(32)O(2), the rings are trans fused. The cyclo-hexane ring has a chair conformation and the cyclo-hexene ring a distorted half-boat conformation. The two independent mol-ecules are con...

Journal: :Dalton transactions 2017
Xi-Rui Li Xiang-Yuan Yang Yongxin Li Sumod A Pullarkat Pak-Hing Leung

A chiral phosphine auxiliary was generated with excellent ee via catalytic asymmetric hydrophosphination of 3-(naphthalen-1-ylmethylene)pentane-2,4-dione. The subsequent metal complexation of the monophosphine yielded two different coordination complexes depending on the reaction conditions. The ortho-palladation of both coordination complexes resulted in the formation of a single dimeric phosp...

2011
Xin-Yuan Chen Min-Min Zhao Xu Qian Shao-Gang Hou

The title compound, C(22)H(20)N(2)O(2), was synthesized via a multicomponent reaction using naphthalen-2-ol, morpholine and 4-formyl-benzonitrile. The dihedral angle between the naphthalene ring system and the benzene ring is 81.25 (10)°. The morpholine ring adopts a chair conformation. The mol-ecular conformation is stabilized by intra-molecular O-H⋯N and C-H⋯O hydrogen bonds. In the crystal, ...

2015
Augusto Rivera Jicli José Rojas Jaime Ríos-Motta Michael Bolte

The crystal structure of the title compound, C25H24N2O2, at 173 K has monoclinic (C2/c) symmetry. The mol-ecule is located on a crystallographic twofold rotation axis with only half a mol-ecule in the asymmetric unit. The imidazolidine ring adopts a twist conformation, with a twist about the ring C-C bond. The crystal structure shows the anti-clinal disposition of the two (2-hy-droxy-naphthalen...

2012
Vladímir V. Kouznetsov Susana A. Zacchino Maximiliano Sortino Leonor Y. Vargas Méndez Mahabir P. Gupta

Diverse α-naphthylamine derivatives were easily prepared from corresponding aldimines derived from commercially available α-naphthaldehyde and anilines or isomeric pyridinecarboxyaldehydes and α-naphthylamine. The secondary amines obtained were tested as possible antifungal and cytotoxic agents. The diverse N-aryl-N-[1-(1-naphthyl)but-3-enyl]amines obtained were active (IC(50) < 10 μg/mL) again...

2015
Assem Barakat Abdullah Mohammed Al-Majid Saied M Soliman Yahia Nasser Mabkhot M Ali Hazem A Ghabbour Hoong-Kun Fun Abdul Wadood

BACKGROUND Chalcones (1,3-diaryl-2-propen-1-ones, represent an important subgroup of the polyphenolic family, which have shown a wide spectrum of medical and industrial application. Due to their redundancy in plants and ease of preparation, this category of molecules has inspired considerable attention for potential therapeutic uses. They are also effective in vivo as anti-tumor promoting, cell...

Journal: :Acta Crystallographica Section E Structure Reports Online 2008

Journal: :Acta Crystallographica Section E Structure Reports Online 2011

Journal: :Acta Crystallographica Section E Structure Reports Online 2010

Journal: :Synthetic Communications 2022

Phenyliodine(III) diacetate-induced oxidation of 2-(2-hydroxynaphthyl)benzoxazoles in alcohols, regioselectively afforded dearomatized products: 1-(benzoxazol-2-yl)-1-alkoxynaphthalen-2(1H)-ones and 1-(benzoxazol-2-yl)naphthalene-2,3-diones. Further, these products were also synthesized one-pot either from (E)-1-(((2-hydroxyphenyl) imino)methyl)naphthalen-2-ol or 2-aminophenol 2-hydroxynaphthal...

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