نتایج جستجو برای: 12 aryl 891012 tetrahydrobenzoaxanthen 11 one

تعداد نتایج: 2670197  

2009
Runhong Jia Juhua Peng Shujiang Tu

The title compound, C(25)H(22)N(2)O(3), was synthesized by the reaction of 3-nitro-benzaldehyde, dimedone and 2-naphthyl-amine in ethanol. In the mol-ecular structure, the cyclo-hexenone ring adopts an envelope conformation, whereas the piperidine ring has a boat conformation. The crystal packing is stabilized by inter-molecular N-H⋯O hydrogen bonds.

2011
S. Karthikeyan K. Sethusankar Anthonisamy Devaraj Manickam Bakthadoss

In the title compound, C(11)H(5)N(3)O(4), the nitro group is rotated by 29.91 (16)° out of the plane of the adjacent aryl ring. The 1,3-benzodioxole ring is nearly planar, with a maximium deviation of 0.0562 (10) Å. The dioxolene ring adopts an envelope conformation on the O-C-O C atom. In the crystal, mol-ecules are linked via C-H⋯O inter-actions, resulting in R(2) (2)(6) and R(2) (2)(12) grap...

Journal: :Zeitschrift fur Naturforschung. C, Journal of biosciences 2008
A El-Essawy Wael A El-Sayed Sherif A El-Kafrawy Asmaa S Morshedy Adel H Abdel-Rahman

A number of 1,3,4-oxadiazole, 3-9, and 1,2,4-triazole derivatives, 13-15, were synthesized starting form the acid hydrazide 1. The 1,3,4-thiadiazole derivative 12 was prepared from the substituted phenylthiosemicarbazide derivative 11 by treatment with sulfuric acid. The aryl hydrazone derivatives 10a-c were synthesized by reaction of the hydrazide 1 with the corresponding ketones. The thioalky...

Journal: :Chemistry of Heterocyclic Compounds 2021

The 1,3-dipolar cycloaddition reaction of (E)-7-arylidene-3-(1H-benzotriazol-1-yl)-6,7-dihydroindolizin-8(5H)-one and azomethine ylide which was generated in situ by the 11H-indeno[1,2-b]quinoxalin-11-one L-proline afforded novel 1'-aryl-3”-(1H-benzotriazol-1-yl)-5',5”,6',6”,7',7a'-hexahydro-1'H,8”H-dispiro[indeno[1,2-b]quinoxaline-11,3'-pyrrolizine-2',7”-indolizin]-8”-one moderate yields. stru...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده علوم انسانی 1391

وزن کوله پشتی ها در دو دهه ی اخیر در بچه های مدرسه ای افزایش یافته است. این وضعیت به شکلی پیش آمده است که وابستگی متخصصین و خانواده ها نسبت به این وضع بیشتر شده و شروع به تخمین تأثیرات آن بر بچه کرده اند. هدف اصلی از انجام این پژوهش بررسی اثر وزن کوله پشتی مدرسه در ایجاد ناهنجاری های وضعیتی ستون فقرات در دختران 11 تا 12 ساله شهر آبدانان است. 168 نفر از دانش آموزان با میانگین و انحراف استاندارد ...

Journal: :The Open Cardiovascular Medicine Journal 2010

2012
Qing-Zhong Guo Yi Du

The title compound, C(46)H(24)F(12)O(8)·C(4)H(8)O, consists of a cyclic aryl ester dimer and a tetra-hydro-furan mol-ecule. In the structure of the cyclic dimer, one carbonyl group stretches above the cavity and the other below.

2013
A. A. Farahat D. W. Boykin

Compounds containing aryl/heteroaryl acetic acid and aryl/heteroaryl ethylamine cores play important roles in the pharmaceutical field. Compounds containing aryl/heteroaryl acetic acid units form a large group of non-steroidal anti-inflammatory drugs such as Indomethacin [1], Diclophenac [2], Sulindac [3], Ketorolac [4], and many others. Also, this subunit appears in a number of antifungal [5],...

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