Flash vacuum pyrolysis of azides, triazoles, and tetrazoles

C Wentrup - Chemical Reviews, 2017 - ACS Publications
Flash vacuum pyrolysis (FVP) of azides is an extremely valuable method of generating
nitrenes and studying their thermal rearrangements. The nitrenes can in many cases be …

Current trends in organic chemistry: contribution of the ND Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences

MP Egorov, VP Ananikov, EG Baskir… - Russian Chemical …, 2024 - Springer
A key goal of organic chemistry is to develop new principles for the control of reactions,
which can be used to create promising materials demanded in all fields of scientific research …

Photochemistry of matrix-isolated 3-chloro-1, 2-benzisoxazole: Generation and characterization of 2-cyanophenoxyl radical and other reactive intermediates

CM Nunes, SMV Pinto, I Reva, MTS Rosado… - Journal of Molecular …, 2018 - Elsevier
Abstract Photochemistry of 3-chloro-1, 2-benzisoxazole 1 in N 2 and Ar matrices at 10 K
leads to N-chloro-ketenimine 3 and 2-cyanophenyl-hypochlorite 4. The reaction kinetics and …

Mechanistic understanding and reactivity analyses for the photochemistry of disubstituted tetrazoles

Y Yang, J Liang, W Li, W Yang, C Wang… - The Journal of …, 2023 - ACS Publications
The photolysis of tetrazoles has undergone extensive research. However, there are still
some problems to be solved in terms of mechanistic understanding and reactivity analyses …

Photochromism of a spiropyran in low-temperature matrices: unprecedented bidirectional switching between a merocyanine and an allene intermediate

CM Nunes, NAM Pereira, R Fausto - The Journal of Physical …, 2022 - ACS Publications
Photochromism of spiropyrans has attracted much attention due to its potential in many light-
controlled system applications. However, several fundamental aspects regarding the …

UV-Induced Photochemistry of 1, 3-Benzoxazole, 2-Isocyanophenol, and 2-Cyanophenol Isolated in Low-Temperature Ar Matrixes

I Reva, AJL Jesus, CM Nunes… - The Journal of Organic …, 2021 - ACS Publications
The monomers of 1, 3-benzoxazole isolated in a cryogenic argon matrix were characterized
by infrared spectroscopy. The photochemistry of matrix-isolated 1, 3-benzoxazole, induced …

Aryl Nitrile Imines and Diazo Compounds. Formation of Indazole, Pyridine N-Imine, and 2-Pyridyldiazomethane from Tetrazoles

D Bégué, A Dargelos, C Wentrup - The Journal of Organic …, 2020 - ACS Publications
Both photolysis and flash vacuum pyrolysis (FVP) of tetrazoles (1/5) are known to generate
nitrile imines (13, 19, and 38), which rearrange to 1 H-diazirines, imidoylnitrenes, and …

Triplet states of tetrazoles, nitrenes, and carbenes from matrix photolysis of tetrazoles, and phenylcyanamide as a source of phenylnitrene

M Abe, D Bégué, HS Silva, A Dargelos… - The Journal of …, 2018 - ACS Publications
Photolysis of 1-and 5-aryltetrazoles at 5–10 K using a 266 nm laser immediately generates
their triplet excited states, which are characterized by their electron spin resonance (ESR) …

Imidoylnitrenes R′C(NR)–N, Nitrile Imines, 1H-Diazirines, and Carbodiimides: Interconversions and Rearrangements, Structures, and Energies at DFT and …

D Bégué, H Santos-Silva, A Dargelos… - The Journal of Physical …, 2017 - ACS Publications
The structures, energies, and rearrangements of imidoylnitrenes H–C ( NH)–N, H2N–C (
NH)–N, Ph–C ( NH)–N, H–C ( NPh)–N, and MeO–C ( NCN)–N (10a–e) are investigated …

[HTML][HTML] Photochemical Generation and Characterization of C-Aminophenyl-Nitrilimines: Insights on Their Bond-Shift Isomers by Matrix-Isolation IR Spectroscopy and …

AJ Lopes Jesus, CM Nunes, GA Ferreira, K Keyvan… - Molecules, 2024 - mdpi.com
The intriguing ability of C-phenyl-nitrilimine to co-exist as allenic and propargylic bond-shift
isomers motivated us to investigate how substituents in the phenyl ring influence this …