Results 71 to 80 of about 1,229 (176)

Simple Conversion of Enamines to 2H-Azirines and Their Rearrangements under Thermal Conditions

, 2016
A variety of substituted enamine derivatives were first found to be conveniently converted to the corresponding 2H-azirines mediated by phenyliodine (III) diacetate (PIDA).
Yunfei Du (1490683), Xiaoxun Li (1508692), Zhidan Liang (1832158), Xiangke Li (1905268), Yan Pan (5477), Kang Zhao (407195)   +5 more
core   +3 more sources

Investigation on the reactivity of α-azidochalcones with carboxylic acids: Formation of α-amido-1,3-diketones and highly substituted 2-(trifluoromethyl)oxazoles

Beilstein Journal of Organic Chemistry, 2015
The reaction of α-azidochalcones with carboxylic acids has been investigated resulting in the formation of α-amido-1,3-diketones under microwave irradiation via in situ formation of 2H-azirine intermediates.
Kandasamy Rajaguru, Arumugam Mariappan, Rajendran Suresh, Periasamy Manivannan, Shanmugam Muthusubramanian   +4 more
doaj   +1 more source

Ruthenium-Catalyzed [3+2] Cycloaddition of 2H-Azirines with Alkynes: Access to Polysubstituted Pyrroles

, 2016
A ruthenium-catalyzed intermolecular [3 + 2] cycloaddition of 2H-azirines and activated alkynes is reported, which provides polysubstituted pyrroles in moderate to good yields.
Wan, Boshun, Yan, Hao, Li, Xincheng, Li, Tengfei, Wang, Chunxiang   +4 more
core   +1 more source

Lewis Acid Mediated Alkylation and Diels-Alder Reactions of 2H-Azirines

, 2002
This thesis describes the use of 2H-azirines as reactivesubstrates in Lewis acid catalysed nucleophilic additions andin the Diels-Alder reaction.A number of carbon nucleophiles have been added to aseries of 2H-azirines in the presence and absence ofBF3 ...
Risberg, Erik
core   +2 more sources

Synthesis of Azirinylammonium Salts via Alkylation of DABCO with 2-Halo-2H-azirines

Molbank
Tertiary (2H-azirin-2-yl)ammonium salts were prepared from methyl 2-halo-3-aryl-2H-azirine-2-carboxylates and 1,4-diazabicyclo[2.2.2]octane in very good to excellent yields. Both iodide and bromide salts are stable enough in crystalline form to be stored
Maksim A. Valiarovskii, Alexander V. Vorob’ev, Anastasiya V. Agafonova, Mikhail S. Novikov   +3 more
doaj   +1 more source

A Review on the Photochemistry of 2H-Azirines [PDF]

HETEROCYCLES, 1977
Gilgen, Paul, Heimgartner, Heinz, Schmid, Hans, Hansen, Hans-Jürgen   +3 more
openaire   +2 more sources

Palladium-Catalyzed C–N Bond Cleavage of 2H‑Azirines for the Synthesis of Functionalized α‑Amido Ketones

, 2019
A Pd-catalyzed ring-opening reaction of 2H-azirines with carboxylic acids was developed. This reaction undergoes nucleophilic addition between 2,3-diaryl-2H-azirines and carboxylic acids followed by C–N single-bond cleavage and a subsequent thermal ...
Xiao-Ju Si (6287384), Yuan-Yuan Song (6287387), Peng-Fei Geng (3820324), Fen Xu (326364), Xing-Dong Wang (3757909), Chun-Sen Liu (1769881), Miao Du (1399054)   +6 more
core   +1 more source

The Chemistry of Azirines

Journal of Synthetic Organic Chemistry, Japan, 1972
TANIGUCHI, Hiroshi, ISOMURA, Kazuaki
openaire   +2 more sources

Selective Synthesis of N-Unsubstituted and N-Arylindoles by the Reaction of Arynes with Azirines

, 2016
The transition-metal-free and temperature-dependent highly selective reaction of arynes with 2H-azirines allowing the synthesis of either N-unsubstituted or N-arylindoles has been developed.
Thangaraj, Manikandan, Gonnade, Rajesh G., Bhojgude, Sachin Suresh, Jain, Shailja, Biju, Akkattu T.   +4 more
core   +1 more source

Copper-Catalyzed Highly Enantioselective Addition of a Silicon Nucleophile to 3-Substituted 2H-Azirines Using an Si-B Reagent. [PDF]

Angew Chem Int Ed Engl, 2023
Zhao ZY, Cui M, Irran E, Oestreich M.
europepmc   +1 more source