Results 11 to 20 of about 60,973 (249)

One‐Pot Synthesis of Thiocarbamates [PDF]

open access: yesEuropean Journal of Organic Chemistry, 2021
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
openaire   +3 more sources

ONE POT SYNTHESIS, OF 2(1H)-QUINAZOLINONE DERIVATIVES

open access: yesZagazig Journal of Pharmaceutical Sciences, 1997
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

open access: yesSynlett, 2016
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
openaire   +3 more sources

Nickel-Catalyzed, One-Pot Synthesis of Pyrazoles

open access: yesChemistry Proceedings, 2022
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]

open access: yesOrganic Letters, 2006
[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
openaire   +2 more sources

Ultrasound-Assisted One‐Pot Synthesis of 9-(Substituted heteroaryl) acridinedione Derivatives

open access: yesDüzce Üniversitesi Bilim ve Teknoloji Dergisi, 2021
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
doaj   +1 more source

One‐Pot Enzymatic Synthesis of Merochlorin A and B [PDF]

open access: yesAngewandte Chemie International Edition, 2014
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

open access: yesMacedonian Journal of Chemistry and Chemical Engineering, 2016
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
doaj   +1 more source

One-Pot Reductive Acetylation of Aldehydes using 1-Hydrosilatrane in Acetic Acid

open access: yesSynOpen, 2019
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

open access: yesMolbank
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

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