Results 11 to 20 of about 60,973 (249)
One‐Pot Synthesis of Thiocarbamates [PDF]
AbstractAn efficient isocyanide‐based synthesis of S‐thiocarbamates was discovered and thoroughly investigated. The new reaction protocol is a one‐pot procedure and allows the direct conversion of N‐formamides into thiocarbamates by initial dehydration with p‐toluene sulfonyl chloride to the respective isocyanide and subsequent addition of a sulfoxide ...
Waibel, Kevin A. +4 more
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ONE POT SYNTHESIS, OF 2(1H)-QUINAZOLINONE DERIVATIVES
Condensation of (3-methoxyphenyl)urea or guanidine derivatives (la-e) with a variety of acyl chlorides in polyphosphoric acid leads to intramolecular cyclization with formation of the title compounds (2a-j). Attempted one pot preparation of new tricyclic
Zakaria Abd El-Samii
doaj +1 more source
One-Pot Synthesis of 9-Aminomethylanthracene
A novel method for the preparation of 9-aminomethylanthracene has been developed by the use of ammonium salts in the reductive amination of the 9-formyl anthracene derivative, a reaction which has been examined with a variety of reducing agents, ammonium ion sources, and solvents.
Glowacka, Paulina, Stephenson, George
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Nickel-Catalyzed, One-Pot Synthesis of Pyrazoles
Recently, multi-component, one-pot reactions have been shown to be efficient and environmentally friendly methods compared to traditional, linear-step syntheses.
Nassima Medjahed +4 more
doaj +1 more source
A One-Pot Synthesis and Functionalization of Polyynes [PDF]
[reaction: see text] A one-pot synthesis and derivatization of diynes and triynes is reported. The polyyne framework is formed from a dibromoolefin precursor based on a carbenoid rearrangement, and the resulting Li-acetylide is then trapped in situ with an electrophile to provide functionalized di- and triynes.
Morisaki, Y, Luu, T, Tykwinski, RR
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Ultrasound-Assisted One‐Pot Synthesis of 9-(Substituted heteroaryl) acridinedione Derivatives
An efficient green approach for the synthesis of 9-heteroaryl-acridine-1,8-dione derivatives (3a-f) was accomplished via reactions of dimedone (1) with various heteroaromatic aldehydes (2a-f) and ammonium acetate through one-pot multicomponent reactions ...
Mehtap Özgür, Duygu Bayramoğlu
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One‐Pot Enzymatic Synthesis of Merochlorin A and B [PDF]
AbstractThe polycycles merochlorin A and B are complex halogenated meroterpenoid natural products with significant antibacterial activities and are produced by the marine bacterium Streptomyces sp. strain CNH‐189. Heterologously produced enzymes and chemical synthesis are employed herein to fully reconstitute the merochlorin biosynthesis in vitro.
Teufel, Robin +6 more
openaire +3 more sources
Asymmetric one-pot synthesis of cyclopropanes
Cycloaddition of the diazoalkanes to electron-deficient olefins (in situ) affords polysubstituted cyclopropanes in high yields (up to 85%). Deprotection of the ketal protecting group provided water-soluble cyclopropane-bearing carbohydrate in good yields.
Naoufel Ben Hamadi +2 more
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One-Pot Reductive Acetylation of Aldehydes using 1-Hydrosilatrane in Acetic Acid
A one-pot, direct reductive acetylation of aldehydes was achieved under mild conditions using 1-hydrosilatrane as a safe and easily accessible catalyst.
Reuben R. James +6 more
doaj +1 more source
Hept-6-en-1-yl Furan-2-carboxylate
This study aims to develop an efficient and green one-pot method for the synthesis of 6-en-1-yl furan-2-carboxylic acid heptyl ester. Initially, using furfural as the starting substrate, hept-6-en-1-yl furan-2-carboxylate was prepared using a one-pot ...
Zhongwei Wang, Lin Song, Yukun Qin
doaj +1 more source

