Results 11 to 20 of about 1,100 (120)

1′-Methyl-4′-phenyldispiro[indan-2,2′-pyrrolidine-3′,2′′-indan]-1,3,1′′-trione [PDF]

Acta Crystallographica Section E Structure Reports Online, 2011
The conformation of the title compound, C(27)H(21)NO(3), is stabilized by a weak intra-molecular C-H⋯O hydrogen bond, which generates an S(6) ring motif. The pyrrolidine ring adopts a half-chair conformation. Both of the other five-membered rings are in envelope conformations. No significant inter-molecular hydrogen bonds are observed.
Ang Chee Wei, Mohamed Ashraf Ali, Tan Soo Choon, Ching Kheng Quah, Hoong‐Kun Fun   +4 more
  +12 more sources

4′-(4-Chlorophenyl)-1′-methyldispiro[indan-2,2′-pyrrolidine-3′,2′′-indan]-1,3,1′′-trione [PDF]

Acta Crystallographica Section E Structure Reports Online, 2011
In the title compound, C(27)H(20)ClNO(3), the two cyclo-pentane rings adopt envelope conformations. The pyrrolidine ring also adopts an envelope conformation (with the spiro C atom as the flap) and its least-squares plane (fitted to five atoms) makes dihedral angles of 66.50 (9), 77.36 (8) and 73.76 (8)° with the chloro-benzene ring and the two 2,3 ...
Ang Chee Wei, Mohamed Ashraf Ali, Keng Yoon Yeong, Ching Kheng Quah, Hoong‐Kun Fun   +4 more
openaire   +3 more sources

2-[(Indan-1-ylidene)amino]ethanol [PDF]

Acta Crystallographica Section E Structure Reports Online, 2011
The five-membed ring of the title compound, C(11)H(13)NO, that is fused with the aromatic ring is approximately planar (r.m.s. deviation = 0.037 Å) despite the presence of the sp(3)-hybrid-ized ethyl-ene linkage. The hy-droxy group of the N-bound hy-droxy-ethyl chain serves as hydrogen-bond donor to the azomethine N atom of an adjacent mol-ecule ...
Abdulrahman O. Al‐Youbi, Abdullah M. Asiri, Hassan M. Faidallah, Khalid A. Alamry, Seik Weng Ng   +4 more
openaire   +3 more sources

2-(4-Ethoxybenzyl)indan [PDF]

Acta Crystallographica Section E Structure Reports Online, 2004
The title compound, C18H20O, arose as an unexpected hydrogenation product. All its geometrical parameters are normal and the crystal packing is controlled by van der Waals forces.
Alan B. Turner, William T. A. Harrison
openaire   +1 more source

Plant-Mediated Enantioselective Transformation of Indan-1-One and Indan-1-ol [PDF]

Catalysts, 2019
The main purpose of this work was to discover the way to obtain pure enantiomers of indan-1-ol. The subject of the study was the ability of the plant enzyme system to reduce the carbonyl group of indan-1-one, as well as to oxidize the hydroxyl group of racemic indan-1-ol.
Wanda Mączka, Katarzyna Wińska, Małgorzata Grabarczyk, Renata Galek   +3 more
openaire   +1 more source

1,1,3-Trimethyl-3-(4-nitrophenyl)indane [PDF]

Acta Crystallographica Section E Structure Reports Online, 2008
In the title compound, C(18)H(19)NO(2), the five-membered ring of the indane fragment adopts an envelope conformation, with the unsubstituted C atom, acting as the flap atom, deviating by 0.412 (3) Å from the plane through the remaining four atoms. The dihedral angle between the nitro-phenyl ring and the indane benzene ring is 72.5 (1)°.
Shi-Xu Yi, Fang Bo, Hua Chen, Guo-Wei Gao, Jian Men   +4 more
openaire   +3 more sources

Plant-Mediated Enantioselective Transformation of Indan-1-one and Indan-1-ol. Part 2 [PDF]

Molecules, 2019
The main purpose of this publication was to obtain the S-enantiomer of indan-1-ol with high enantiomeric excess and satisfactory yield. In our research, we used carrot callus cultures (Daucus carota L.), whereby the enzymatic system reduced indan-1-one and oxidized indan-1-ol.
Wanda Mączka, Katarzyna Wińska, Małgorzata Grabarczyk, Renata Galek   +3 more
openaire   +2 more sources

4′-(4-Fluorophenyl)-1′-methyldispiro[indane-2,2′-pyrrolidine-3′,2′′-indane]-1,3,1′′-trione methanol hemisolvate [PDF]

Acta Crystallographica Section E Structure Reports Online, 2013
La unidad asimétrica del compuesto del título, C29H24FNO5·0.5CH3OH, contiene dos mol-éculas independientes y una mol-ecula de disolvente de metanol. El mol-ecule de metanol es hidrógeno O-H O unido a uno de los mol-ecules independientes. Los anillos de pirrolidina en ambos mol-éculas adoptan conformaciones de media silla, mientras que los anillos de ...
Mohamed Ashraf Ali, Manogaran Elumalai, Tan Soo Choon, Mohd Mustaqim Rosli, Ibrahim Abdul Razak   +4 more
openaire   +2 more sources

1′-Methyl-4′-[4-(trifluoromethyl)phenyl]dispiro[indan-2,2′-pyrrolidine-3′,2′′-indan]-1,3,1′′-trione [PDF]

Acta Crystallographica Section E Structure Reports Online, 2011
Dans le composé du titre, C(28)H(20)F(3)NO(3), le cycle pyrrolidine adopte une conformation en demi-chaise. Les autres cycles à cinqchaînonsadoptent des conformations d'enveloppe avec les atomes de spiro et de méthylène C comme atomes de lambeau. Dans le cristal,les mol-éculessont connectées via de faibles liaisonshydrogène C-H O, formant des feuilles ...
Ang Chee Wei, Mohamed Ashraf Ali, Tan Soo Choon, Madhukar Hemamalini, Hoong‐Kun Fun   +4 more
openaire   +3 more sources

(E)-2-(3,5-Dimethoxybenzylidene)indan-1-one [PDF]

IUCrData, 2020
The title chalcone, C18H16O3, was prepared by a solventless base-promoted Claisen–Schmidt condensation and, upon recrystallization from ethanol, obtained in 56% yield. The dihedral angle between the indanone ring system and the benzene ring is 2.54 (4) ° and the C atoms of the methoxy groups deviate from the benzene ring by 0.087 (1) and 0.114 (1) Å ...
Elvia Encarnacion-Thomas, Roger D. Sommer, Ajay Mallia, Joseph Sloop   +3 more
openaire   +3 more sources