cis-2,6-Dibenzylcyclohexanone
نویسندگان
چکیده
In the title compound, C(20)H(22)O, the mol-ecule is a meso isomer with the two benzyl groups cis to each other. The central cyclo-hexa-none ring adopts a chair conformation. The mol-ecule lies on a noncrystallographic mirror plane and the dihedral angles of the benzyl groups with respect to the ketone moiety are 88.06 (6) and 89.07 (6)°.
منابع مشابه
Synthesis and ROMP Chemistry of Decafluoroterphenoxide Molybdenum Imido Alkylidene and Ethylene Complexes
The bisDFTO alkylidene complexes of molybdenum Mo(NR)(CHCMe2Ph)(DFTO)2 (R = 2,6-i-Pr2C6H3, 2,6-Me2C6H3, C6F5, 1-adamantyl; DFTO = 2,6-(C6F5)2C6H3O) and monoaryloxide monopyrrolide (MAP) complexes Mo(NR)(CHCMe2Ph)(Me2Pyr)(OAr) (Me2Pyr = 2,5-dimethylpyrrolide; R = C6F5, OAr = DFTO, 2,6dimesitylphenoxide (HMTO); R = 2,6-Me2C6H3, OAr = DFTO) have been prepared in good yields. Addition of dicarbomet...
متن کاملCrystal structure of unsymmetrical α-diimine palladium(II) complex cis-[{ArN=C(Me)–(Et)C=NAr}PdCl2] [Ar = 2,6-(iPr)2C6H3]
The unsymmetrical α-di-imine ligand N-{2-[2,6-bis-(propan-2-yl)phenylimino]pentan-3-yl-idene}-2,6-bis-(propan-2-yl)aniline, [ArN=C(Me)-(Et)C=NAr] [Ar = 2,6-(iPr)2C6H3], (I), and the corresponding palladium complex, cis-(N-{2-[2,6-bis-(propan-2-yl)phenylimino]pentan-3-yl-idene}-2,6-bis-(propan-2-yl)aniline)di-chlor-ido-palladium(II) 1,2-di-chloro-ethane monosolvate, [PdCl2(C29H42N2)]·C2H4Cl2 or ...
متن کاملThe stereodivergent formation of 2,6-cis and 2,6-trans-tetrahydropyrans: experimental and computational investigation of the mechanism of a thioester oxy-Michael cyclization† †Electronic supplementary information (ESI) available: Experimental procedures, compound characterization data and details of the computational studies. See DOI: 10.1039/c6sc03478k Click here for additional data file.
The origins of the stereodivergence in the thioester oxy-Michael cyclization for the formation of 4-hydroxy2,6-cisor 2,6-trans-substituted tetrahydropyran rings under different conditions was investigated both computationally and experimentally. Synthetic studies showed that the 4-hydroxyl group was essential for stereodivergence. When the 4-hydroxyl group was present, TBAF-mediated conditions ...
متن کاملRe-investigation of venom chemistry of Solenopsis fire ants. II. Identification of novel alkaloids in S. invicta.
The venom of the red imported fire ant, Solenopsis invicta, is dominated by trans stereoisomers of 2,6-dialkylpiperidines. cis Stereoisomers of alkaloids in the venom of S. invicta were separated from trans stereoisomers by using silica gel short column chromatography and identified by coupled gas chromatography mass spectrometry (GC-MS). Seven pairs of cis and trans sterecoisomers were identif...
متن کاملTandem catalysis in domino olefin cross-metathesis/intramolecular oxa-conjugate cyclization: concise synthesis of 2,6-cis-substituted tetrahydropyran derivatives.
Herein, we describe the concise synthesis of 2,6-cis-substituted tetrahydropyran derivatives based on a domino olefin cross-metathesis/intramolecular oxa-conjugate cyclization (CM/IOCC) reaction. We have found that the domino CM/IOCC of δ-hydroxy olefins with α,β-unsaturated carbonyl compounds (e.g., trans-crotonaldehyde or N-acryloyl-2,5-dimethylpyrrole) could be efficiently achieved in the pr...
متن کامل