Results 61 to 70 of about 161 (128)

Synthesis and structure of 1′,4′-diphenyl-1a,1′,4′,4′′,5′′,9b-hexahydro-2′′H-dispiro[cyclopropa[l]phenanthrene-1,2′-[1,4]epoxynaphthalene-3′,3′′-thiophene]

Acta Crystallographica Section E: Crystallographic Communications
The title compound, C39H30OS, was inadvertently prepared as a Diels–Alder adduct between 1,3-diphenylisobenzofuran and 3-(1a,9b-dihydro-1H-cyclopropa[l]phenanthren-1-ylidene)tetrahydrothiophene.
Yuewei Wen, Dasan M. Thamattoor
doaj   +1 more source

Synthesis and crystal structure (3R,4′S)-4′-(3,5-dibromophenyl)-1′-methyl-2H-dispiro [benzofuran-3,3′-pyrrolidine-2′,2″-indene]-1″,2,3″-trione, C26H17Br2NO4

Zeitschrift für Kristallographie - New Crystal Structures
C26H17Br2NO4, triclinic, P1¯ (no. 2), a = 8.3900(2) Å, b = 11.9445(2) Å, c = 12.4155(2) Å, α = 74.4620(10)°, β = 81.802(2)°, γ = 70.601(2)°, V = 1128.72(4) Å3, Z = 2, Rgt(F) = 0.0449, wRref(F2) = 0.1228, T = 249(1) K.
Chai Yi-Hui, Fan Zhi-Ling, Dong Zhang-Chao, Shi Yang, Liu Li-Juan, Pan Bo-Wen, Yang Fang-Fang   +6 more
doaj   +1 more source

Semisynthesis of Novel Dispiro-pyrrolizidino/thiopyrrolizidino-oxindolo/indanedione Natural Product Hybrids of Parthenin Followed by Their Cytotoxicity Evaluation

ACS Omega, 2023
Chetan Paul Singh, Priyanka Sharma, Manzoor Ahmed, Diljeet Kumar, Yogesh Brijwashi Sharma, Jayanta Samanta, Zabeer Ahmed, Sanket Kumar Shukla, Abhijit Hazra, Yogesh P. Bharitkar   +9 more
doaj   +1 more source

Synthesis of dispiro heteroanalogs of pyrrolizidine alkaloids: crystal and molecular structure of substituted 3',4'',5-trioxodispiro[(2'',5''-cyclohexadiene)-1''(4''H),7'-[7H]pyrrolizine-2'(3'H),2-[2H]pyrrole]-1'-carboxamide

ARKIVOC, 2014
Valeriya V. Konovalova, Yuliya S. Rozhkova, Yurii V. Shklyaev, Pavel A. Slepukhin, Andrey N. Maslivets   +4 more
doaj   +1 more source

Regioselective synthesis and anti-inflammatory activity of novel dispiro[pyrazolidine-4,3'-pyrrolidine-2',3"-indoline]-2",3,5-triones

ARKIVOC, 2011
Essam M. Hussein, Maisa I. Abdel-Monem
doaj   +1 more source

Interaction between the Antimalarial Drug Dispiro-Tetraoxanes and Human Serum Albumin: A Combined Study with Spectroscopic Methods and Computational Studies

ACS Omega, 2020
Priyanka Yadav, Bhawana Sharma, Chiranjeev Sharma, Preeti Singh, Satish K. Awasthi   +4 more
doaj   +1 more source

γ-Dispiro-iminolactone synthesis by three component reaction between alkyl isocyanides and acetylenic esters with α-dicarbonyl compounds

ARKIVOC, 2007
Nourollah Hazeri, Malek Taher Maghsoodlou, Sayyed Mostafa Habibi-Khorassani, Morteza Ziyaadini, Ghasem Marandi, Khatereh Khandan-Barani, Hamid Reza Bijanzadeh   +6 more
doaj   +1 more source

Unprecedented Regio- and Stereoselective Synthesis of Pyrene-Grafted Dispiro[indoline-3,2′-pyrrolidine-3′,3″-indolines]: Expedient Experimental and Theoretical Insights into Polar [3 + 2] Cycloaddition

ACS Omega, 2020
Essam M. Hussein, Nizar El Guesmi, Ziad Moussa, Uttam Pal, Samir K. Pal, Tanusri Saha Dasgupta, Saleh A. Ahmed   +6 more
doaj   +1 more source

Construction of Dispiro-Indenone Scaffolds via Domino Cycloaddition Reactions of α,β-Unsaturated Aldimines with 2‑Arylidene-1,3-indenediones and 2,2′-(Arylmethylene)bis(1,3-indenediones)

ACS Omega, 2019
Wen-Juan Yang, Hui-Lin Fang, Jing Sun, Chao-Guo Yan   +3 more
doaj   +1 more source

Crystal structure of 1′-(2-chlorophenyl)-5,5′,6,6′,7′,7a′-hexahydro-1′H-dispiro[imidazo[2,1-b][1,3]thiazole-2,2′-pyrrolizine-3′,3′′- indole]-2′′,3(1′′H)-dione, C24H21ClN4O2S

Zeitschrift für Kristallographie - New Crystal Structures, 2010
Hou Zhao-Hui, Liu Bin
doaj   +1 more source