Regioselective synthesis of indazolo[2,3-a]quinazolines enabled by I2/S-facilitated annulation relay dehydrogenative aromatization of cyclohexanones
Literature Information
Qinghe Gao, Yimei Guo, Penghui Cao, Guangping Fan, Yongtao Xu
A method for concise and efficient synthesis of indazolo[2,3-a]quinazolines has been developed via a sequential annulation of 3-aminoindazoles and dehydrogenative aromatization of cyclohexanones. This high regioselectivity is attributed to the fact that the Mannich reaction is superior to the aldol reaction in this system. It is worth mentioning that this convenient process is successfully extended to 3-aminopyrazoles for assembling another class of medicinally prevalent pyrazolo[1,5-a]quinazolines.
Recommended Journals
Related Literature
Mixed micellization between natural and synthetic block copolymers: β-casein and Lutrol F-127
Irina Portnaya, Rafail Khalfin, Ellina Kesselman, Ory Ramon, Uri Cogan
DOI: 10.1039/C0CP01321H
Rheo-attenuated total reflectance infrared spectroscopy: a new tool to study biopolymers
Maxime Boulet-Audet, Fritz Vollrath, Chris Holland
DOI: 10.1039/C0CP02599B
The competitive adsorption of counter-ions at the surface of anionic surfactants solution
Harald Morgner
DOI: 10.1039/C0CP01600D
Influence of moisture content and temperature on the dielectric permittivity of zeolite NaY
Markus Kraus, Frank-Dieter Kopinke, Ulf Roland
DOI: 10.1039/C0CP02264K
Pre-nucleation dynamics of organic moleculeself-assembly investigated by PEEM
Alexander J. Fleming, Stephen Berkebile, Thomas Ules, Michael G. Ramsey
DOI: 10.1039/C0CP01516D
The effect of coordinating and non-coordinating additives on the transport properties in ionic liquid electrolytes for lithium batteries
Paul M. Bayley, A. S. Best, D. R. MacFarlane, M. Forsyth
DOI: 10.1039/C0CP02084B
Self-limited oxygen exchange kinetics at SnO2 surfaces
Christoph Körber, André Wachau, Péter Ágoston, Karsten Albe, Andreas Klein
DOI: 10.1039/C0CP01935F
Versatile application of indirect Fourier transformation to structure factor analysis: from X-ray diffraction of molecular liquids to small angle scattering of protein solutions
Toshiko Fukasawa, Takaaki Sato
DOI: 10.1039/C0CP01679A
Macromolecular dynamics of conjugated polymer in donor–acceptor blends with charge transfer complex
Tatyana V. Laptinskaya
DOI: 10.1039/C0CP01710H
You might also like
Is 2-(2-chloroacetamido)-3-phenylpropanoic acid (CAS: 7765-11-9) safe?
2-(2-Chloroacetamido)-3-phenylpropanoic acid (CAS: 7765-11-9) is generally consi...
Is 2-(Benzyloxy)-5-bromobenzoic acid (CAS: 62176-31-2) safe?
2-(Benzyloxy)-5-bromobenzoic acid can be handled safely if appropriate precautio...
What is (4-Methyl-1,2,5-oxadiazol-3-yl)methanamine hydrochloride (CAS: 1159825-48-5)?
(4-Methyl-1,2,5-oxadiazol-3-yl)methanamine hydrochloride is a chemical compound ...
What is 2-(5-Hexylthiophen-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS: 917985-54-7)?
2-(5-Hexylthiophen-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS: 917985-54...
Are there alternatives to 4-(8-Methyl-9H-1,3-dioxolo[4,5-h][2,3]benzodiazepin-5-yl)benzenamine (CAS: 102771-26-6) in synthesis?
While 4-(8-Methyl-9H-1,3-dioxolo[4,5-h][2,3]benzodiazepin-5-yl)benzenamine (CAS:...
What is the market or research trend for tert-butyl 3-hydroxy-4,5,7,8-tetrahydro-2H-pyrazolo[3,4-d]azepine-6-carboxylate (CAS: 851376-80-2)?
The market for tert-butyl 3-hydroxy-4,5,7,8-tetrahydro-2H-pyrazolo[3,4-d]azepine...
How should waste containing 3,5-Diamino-1H-pyrazole-4-carbonitrile (CAS: 6844-58-2) be handled?
Waste containing 3,5-Diamino-1H-pyrazole-4-carbonitrile (CAS: 6844-58-2) should ...
How is (6-Fluoro-3-pyridinyl)boronic acid (CAS: 351019-18-6) typically synthesized?
(6-Fluoro-3-pyridinyl)boronic acid can be synthesized through the reaction of 6-...
What industries use Dibenzyl carbonimidoylbiscarbamate (CAS: 10065-79-9)?
Dibenzyl carbonimidoylbiscarbamate (CAS: 10065-79-9) finds applications in vario...
What is the market or research trend for (beta,beta,2,3,4,5,6-~2~H_7_)Phenylalanine (CAS: 74228-83-4)?
The market for (beta,beta,2,3,4,5,6-~2~H_7_)Phenylalanine (CAS: 74228-83-4) is g...
Source Journal
Chemical Communications

ChemComm publishes urgent research which is of outstanding significance and interest to experts in the field, while also appealing to the journal’s broad chemistry readership. Our communication format is ideally suited to short, urgent studies that are of such importance that they require accelerated publication. Our scope covers all topics in chemistry, and research at the interface of chemistry and other disciplines (such as materials science, nanoscience, physics, engineering and biology) where there is a significant novelty in the chemistry aspects. Major topic areas covered include: Analytical Chemistry Catalysis Chemical Biology and medicinal chemistry Computational Chemistry and Machine Learning Energy and sustainable chemistry Environmental Chemistry Green Chemistry Inorganic Chemistry Materials Chemistry Nanoscience Organic Chemistry Physical Chemistry Polymer Chemistry Supramolecular Chemistry













![3,7-Di(1,1':3',1''-terphenyl-5'-yl)-10,11,12,13-tetrahydrodiindeno[7,1-de:1',7'-fg][1,3,2]dioxaphosphocin-5-ol 5-oxide structure 3,7-Di(1,1':3',1''-terphenyl-5'-yl)-10,11,12,13-tetrahydrodiindeno[7,1-de:1',7'-fg][1,3,2]dioxaphosphocin-5-ol 5-oxide structure](https://static.chemtradehub.com/structs/135/1352810-38-8-3f10.webp)
![(3S,4aS,8aS)-2-[(2R,3S)-3-Amino-2-hydroxy-4-phenylbutyl]-N-(2-methyl-2-propanyl)decahydro-3-isoquinolinecarboxamide structure (3S,4aS,8aS)-2-[(2R,3S)-3-Amino-2-hydroxy-4-phenylbutyl]-N-(2-methyl-2-propanyl)decahydro-3-isoquinolinecarboxamide structure](https://static.chemtradehub.com/structs/136/136522-17-3-4d77.webp)