Synthesis and photophysical properties of 5-(3''-alkyl/aryl-amino-1''-azaindolizin-2''-yl)-2'-deoxyuridines

2021 ◽  
Author(s):  
Sandeep Kumar ◽  
Sumit Kumar ◽  
Jyotirmoy Maity ◽  
Banty Kumar ◽  
Shilpika Bali ◽  
...  
Keyword(s):  
Photophysical Properties ◽  
Efficient Synthesis ◽  
Alkyl Aryl ◽  
Gbb Reaction

Groebke-Blackburn-Bienayame (GBB) reaction has been used for the efficient synthesis of novel fluorescent 5-azaindolizino-2'-deoxyuridines starting from commercially available thymidine following two strategies. Thus, thymidine was converted to diacetylthymidine, which on...

scholarly journals Microwave-assisted Efficient Synthesis of Alliodorin and (±)-Curcuhydroquinone

1999 ◽  
Vol 23 (2) ◽  
pp. 164-165
Author(s):  
Goverdhan L. Kad ◽  
Anupam Khurana ◽  
Vasundhara Singh ◽  
Jasvinder Singh
Keyword(s):  
Grignard Reagents ◽  
Methyl Groups ◽  
Efficient Synthesis ◽  
Alkyl Aryl ◽  
Microwave Assisted ◽  
Aryl Bromides ◽  
Key Steps

Terpenoids 1 and 2 have been synthesized from readily available starting materials using Li2CuCI4-catalysed coupling of Grignard reagents with alkyl/aryl bromides and microwave-assisted oxidation of allylic methyl groups, using SeO2/ButOOH adsorbed over SiO2 as key steps.

The Versatility of the Aryne–Imine–Aryne Coupling for the ­Synthesis of Acridinium Photocatalysts

Synlett ◽  
2021 ◽  
Author(s):  
Christof Sparr ◽  
Valeriia Hutskalova
Keyword(s):  
Substitution Reaction ◽  
Precious Metal ◽  
Photophysical Properties ◽  
Cation Radical ◽  
Coupling Reaction ◽  
Nucleophilic Aromatic Substitution ◽  
The Novel ◽  
Aromatic Substitution ◽  
Efficient Synthesis

AbstractThe increasing use of acridinium photocatalysts as sustainable alternative to precious metal-based counterparts encourages the design and efficient synthesis of distinct catalyst structures. Herein, we report our exploration of the scope of the aryne–imine–aryne coupling reaction combined with a subsequent acridane oxidation for a short two-step approach towards various acridinium salts. The photophysical properties of the novel photocatalysts were investigated and the practical value was demonstrated by a cation-radical accelerated nucleophilic aromatic substitution reaction.

Synthesis of functionalized 5-substituted thiazolidine-2-thiones via adscititious xanthate-promoted radical cyclization of allyl(alkyl/aryl)dithiocarbamates

2016 ◽  
Vol 14 (3) ◽  
pp. 1002-1012 ◽  
Author(s):  
Simiao Gao ◽  
Yu Zhang ◽  
Jun Dong ◽  
Ning Chen ◽  
Jiaxi Xu
Keyword(s):  
Radical Cyclization ◽  
Efficient Synthesis ◽  
Alkyl Aryl

An adscititious radical precursor-promoted cyclization is designed and realized in efficient synthesis of functionalized 5-substituted thiazolidine-2-thiones from alkyl allyl(alkyl/aryl)dithiocarbamates.

Novel Fluorophores: Efficient Synthesis and Photophysical Properties

2004 ◽  
Vol 6 (5) ◽  
pp. 739-742 ◽  
Author(s):  
Rémi Métivier ◽  
Rémi Amengual ◽  
Isabelle Leray ◽  
Véronique Michelet ◽  
Jean-Pierre Genêt
Keyword(s):  
Photophysical Properties ◽  
Efficient Synthesis

Catalytic Enantioselective 1,3-Alkyl Shift in Alkyl Aryl Ethers: Efficient Synthesis of Optically Active 3,3′-Diaryloxindoles

2018 ◽  
Vol 57 (20) ◽  
pp. 5735-5739 ◽  
Author(s):  
Amol B. Gade ◽  
Pradip N. Bagle ◽  
Popat S. Shinde ◽  
Vipin Bhardwaj ◽  
Subhrashis Banerjee ◽  
...  
Keyword(s):  
Optically Active ◽  
Efficient Synthesis ◽  
Alkyl Aryl ◽  
Aryl Ethers ◽  
Alkyl Aryl Ethers

ChemInform Abstract: Highly Efficient Synthesis of 3-Alkyl/Aryl-4-aryl-1,2,3,4-tetrahydroisoquinolines from N,N-Dibenzylaminols.

ChemInform ◽  
2010 ◽  
Vol 33 (27) ◽  
pp. no-no
Author(s):  
S. Chandrasekhar ◽  
N. Ramakrishna Reddy ◽  
M. Venkat Reddy ◽  
B. Jagannadh ◽  
A. Nagaraju ◽  
...  
Keyword(s):  
Efficient Synthesis ◽  
Alkyl Aryl ◽  
Highly Efficient

An Efficient Synthesis of Functionalized 2H-1,3,5-Oxadiazines via Metal-Carbenoid-Induced 1,2,4-Oxadiazole Ring Cleavage

Synthesis ◽  
2020 ◽  
Vol 53 (02) ◽  
pp. 348-358
Author(s):  
Mikhail S. Novikov ◽  
Julia O. Strelnikova ◽  
Nikolai V. Rostovskii ◽  
Olesya V. Khoroshilova ◽  
Alexander F. Khlebnikov
Keyword(s):  
Ring Opening ◽  
Ring Cleavage ◽  
Efficient Synthesis ◽  
Alkyl Aryl ◽  
Diazo Esters ◽  
Reaction Proceeds

AbstractA high-yielding method for the synthesis of 2H-1,3,5-oxadiazines by rhodium(II)- or copper(II)-catalyzed reaction of 1,2,4-oxadiazoles with α-diazo esters has been developed. The reaction proceeds via attack of the metallocarbenoid on the oxadiazole N2 atom followed by ring opening/1,6-electrocyclization and enables the introduction of alkyl, aryl, oxy, and amino substituents into the 6-position and electron-withdrawing groups into the 2-position of 1,3,5-oxadiazine. The N2-attack and the N4-attack of the carbenoid cause different oxadiazole ring openings, which are controlled by the substitution at C5. The presence of a substituent at this position is a prerequisite for the N2-attack to occur, leading to the formation of 1,3,5-oxadiazines.

Efficient synthesis of alkyl aryl ketones & ketals via palladium-catalyzed regioselective arylation of vinyl ethers

2010 ◽  
Vol 8 (9) ◽  
pp. 2012 ◽  
Author(s):  
Mingcui Liu ◽  
Zeynab Hyder ◽  
Yawei Sun ◽  
Weijun Tang ◽  
Lijin Xu ◽  
...  
Keyword(s):  
Efficient Synthesis ◽  
Vinyl Ethers ◽  
Alkyl Aryl ◽  
Aryl Ketones ◽  
Palladium Catalyzed
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