Results 21 to 30 of about 266,703 (209)

The Use of Tetrabutylammonium Azide in the Curtius Rearrangement. [PDF]

open access: bronzeActa Chemica Scandinavica, 1974
Arne Brändström   +5 more
openalex   +3 more sources

One-Pot Synthesis of Fused 2-Pyridones from Heteroarylacrylic Acid via Curtius Rearrangement and Microwave-Assisted Thermal Electrocyclization

open access: gold, 2017
– We investigated the one-pot synthesis of several fused 2-pyridone ring systems based on a Curtius rearrangement, followed by a microwave-assisted thermal electrocyclization of a 2-aza-6  -electron system including isocyanate.
Tominari Choshi   +9 more
openalex   +2 more sources

An ( R )-4-Phenyl-1,3-oxazolidine-2-Thione Mediated Approach to 2, 3-Disubstituted Oxetanes and the Key Hydroxyethyl Isostere of the Hiv Protease Inhibitor Darunavir. Preparation of Non-evans Syn Glycolate Aldol Addition Products. a New Direction for the Curtius Rearrangement in the Dehomologation of Alpha-alkoxycarboxylic Acids [PDF]

open access: bronze, 2023
Since the emergence of AIDS in the early 1980s, strategies to mitigate the disease remain a high priority for medical professionals worldwide. While there is no broadly available cure or vaccine for HIV/AIDS at this time, early diagnosis and treatment ...
Jordan Witte
openalex   +3 more sources

A THEORETICAL STUDY OF THE THERMAL CURTIUS REARRANGEMENT OF SOME CINNAMOYL AZIDES USING THE DFT APPROACH [PDF]

open access: bronzeJournal of Structural Chemistry, 2015
Rafie H. Abu‐Eittah   +4 more
openalex   +2 more sources

An Efficient Synthesis of PARP Inhibitors Containing a 4-Trifluoromethyl Substituted 3,6,7,7a-Tetrahydro- 1H-pyrrolo[3,4-d]pyrimidine-2,5-dione Scaffold

open access: yesЖурнал органічної та фармацевтичної хімії, 2023
Poly(ADP-ribose) polymerases (PARPs) are key enzymes in the DNA repair pathway. Inhibitors of these enzymes belong to a new type of anticancer drugs that selectively kill cancer cells by targeting the homologous recombination genetic defects.
Oleh O. Lukianov   +4 more
doaj   +1 more source

3,​3-​dichloro-​1,​2-​diphenylcyclopropene (CPICl)​-​mediated synthesis of Nα-​protected amino acid azides and α-​ureidopeptides [PDF]

open access: yes, 2014
Rapid synthesis of acid azides via in situ generation of acid chlorides using CPICl as chlorinating agent from the corresponding Nα -protected amino acids is described.
Madhu, C.   +3 more
core   +4 more sources

The Synthesis and Acid-base Properties of α-(Fluoromethyl)- and α-(Difluoromethyl)-substituted Cyclobutane Building Blocks

open access: yesЖурнал органічної та фармацевтичної хімії, 2023
Aim. To synthesize cyclobutane-derived amines and carboxylic acids bearing CH2F or CHF2 groups in the α position; to determine the regularities of the effect of fluoroalkyl substituents on the acid-base properties of the title compounds.
Oleksandr Demchuk, Oleksandr Grygorenko
doaj   +1 more source

Convenient approaches to the synthesis of 6-amino- and 6-oxoimidazo[4,5-b]pyrazolo[3,4-e]pyridines

open access: yesЖурнал органічної та фармацевтичної хімії, 2021
Aim. To develop convenient approaches to the synthesis of 6-amino- and 6-oxoimidazo[4,5-b]pyrazolo[3,4-e]pyridines as promising biologically active scaffolds. Results and discussion.
Georgiy G. Yakovenko, Mikhailo V. Vovk
doaj   +1 more source

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