Enantioselective phospha-Michael reaction of diethyl phosphonate with exocyclic α,β-unsaturated benzocyclic ketones catalyzed by a dinuclear zinc−AzePhenol catalyst
作者:Na Shao、Yong-Yang Luo、Hui-Jie Lu、Yuan-Zhao Hua、Min-Can Wang
DOI:10.1016/j.tet.2018.03.016
日期:2018.4
The dinuclear zinc complexes as high performance catalysts were used to catalyze phospha-Michael reaction of exocyclic α,β-unsaturated benzocyclic ketones under mild conditions, and the desired products possessing 1-indanones or 1-tetralones skeleton were obtained with excellent enantioselectivities of up to 99%/99% ee and yields of up to 99%. The absolute stereochemistry of the major products catalyzed
Synthesis, characterization and spectroscopic behavior of novel 2-oxo-1,4-disubstituted-1,2,5,6-tetrahydrobenzo[h]quinoline-3-carbonitrile dyes
作者:Salman A. Khan、Abdullah M. Asiri、Saad H. Al-Thaqafy、Hassan M. Faidallah、Samy A. El-Daly
DOI:10.1016/j.saa.2014.05.013
日期:2014.12
Two synthetic pathways were adopted to synthesize the target 2-oxo-1,4-disubstituted-1,2,5,6-tetrahydro-benzo[h]quinoline-3-carbonitriles. Structure of the synthesized compounds has been characterized based on FT-IR, H-1 NMR, C-13 NMR and elemental analyses. UV-Vis and fluorescence spectroscopy measurements provided that all compounds are good absorbent and fluorescent. Fluorescence polarity study demonstrated that these compounds were sensitive to the polarity of the microenvironment provided by different solvents. In addition, spectroscopic and physicochemical parameters, including singlet absorption, extinction coefficient, Stokes shift, oscillator strength and dipole moment were investigated in order to explore the analytical potential of synthesized compounds. (C) 2014 Elsevier B.V. All rights reserved.
Rao, C. Janakiram; Reddy, K. Malla; Murthy, A. Krishna, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1981, vol. 20, # 4, p. 282 - 284
作者:Rao, C. Janakiram、Reddy, K. Malla、Murthy, A. Krishna
DOI:——
日期:——
Rearrangement studies on 1-tetralylidenecyanothioacetamide: A different novel synthetic routes to strong fluorescent phenanthridine and phenanthrene analogues
作者:Galal E.H. Elgemeie、Nahed M. Fathy
DOI:10.1016/0040-4020(95)00063-e
日期:1995.3
A novel synthesis of strong fluorescent phenanthridine and phenanthrene analogues utilizing arylmethylenecyanothioacetamides and 1-tetralylidenemalononitrile or 1-tetralylidenecyanothioacetamide and arylmethylenemalononitriles as starting components is described.
Bloxham, Jason; Dell, Colin P., Journal of the Chemical Society. Perkin transactions I, 1993, # 24, p. 3055 - 3060