Selenocyanation of Aryl and Styryl Methyl Ketones in the Presence of Selenium Dioxide and Malononitrile: An Approach for the Synthesis of α-Carbonyl Selenocyanates

2020 ◽  
Author(s):  
Ibakyntiew D. Marpna ◽  
Kmendashisha Wanniang ◽  
Tyrchain Mitre Lipon ◽  
O. Risuklang Shangpliang ◽  
Bekington Myrboh
Keyword(s):  
Selenium Dioxide ◽  
Methyl Ketones

Microwave-assisted selenium dioxide oxidation of aryl methyl ketones to aryl glyoxals

2011 ◽  
Vol 52 (31) ◽  
pp. 4036-4038 ◽  
Author(s):  
Ryan M. Young ◽  
Michael T. Davies-Coleman
Keyword(s):  
Selenium Dioxide ◽  
Methyl Ketones ◽  
Microwave Assisted ◽  
Aryl Methyl

Selenium Dioxide As an Alternative Reagent for the Direct α-Selenoamidation of Aryl Methyl Ketones

2018 ◽  
Vol 83 (10) ◽  
pp. 5829-5835 ◽  
Author(s):  
O. Risuklang Shangpliang ◽  
Baskhemlang Kshiar ◽  
Kmendashisha Wanniang ◽  
Ibakyntiew D. Marpna ◽  
Tyrchain Mitre Lipon ◽  
...  
Keyword(s):  
Selenium Dioxide ◽  
Methyl Ketones ◽  
Aryl Methyl

scholarly journals PTSA-Catalyzed Reaction of Alkyl/Aryl Methyl Ketones with Aliphatic Alcohols in the Presence of Selenium Dioxide: A Protocol for the Generation of an α-Ketoacetals Library

ACS Omega ◽  
2019 ◽  
Vol 4 (3) ◽  
pp. 6035-6043 ◽  
Author(s):  
O. Risuklang Shangpliang ◽  
Kmendashisha Wanniang ◽  
Baskhemlang Kshiar ◽  
Ibakyntiew D. Marpna ◽  
Tyrchain Mitre Lipon ◽  
...  
Keyword(s):  
Selenium Dioxide ◽  
Aliphatic Alcohols ◽  
Methyl Ketones ◽  
Alkyl Aryl ◽  
Aryl Methyl

THE SYNTHESIS OF AROYL METHYL KETONES AS LIGNIN MODEL SUBSTANCES

1964 ◽  
Vol 42 (1) ◽  
pp. 113-120 ◽  
Author(s):  
J. M. Pepper ◽  
Maitreyi Saha
Keyword(s):  
Selenium Dioxide ◽  
Methyl Ketones ◽  
Lignin Model ◽  
Model Substances

A series of aroyl methyl ketones (ArCOCOCH3 in which Ar was phenyl, p-hydroxyphenyl, p-methoxy phenyl, 4-hydroxy-3-methoxyphenyl, 3,4-dimethoxyphenyl, 4-hydroxy-3,5-dimethoxyphenyl, and 3,4,5-trimethoxyphenyl) has been prepared by the oxidation, using selenium dioxide, of the correspondingly substituted benzyl methyl ketones.

Substituted 4-Formyl-2H-chromen-2-ones: Their Reaction with N-(2,3,4,6-Tetra-Oacetyl- β-D-galactopyranosyl)thiosemicarbazide, Antibacterial and Antifungal Activity of Their Thiosemicarbazone Products

2020 ◽  
Vol 24 (19) ◽  
pp. 2272-2282
Author(s):  
Vu Ngoc Toan ◽  
Nguyen Minh Tri ◽  
Nguyen Dinh Thanh
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Candida Albicans ◽  
Selenium Dioxide ◽  
Antibacterial And Antifungal Activity ◽  
E Coli ◽  
Antibacterial And Antifungal Activities ◽  
Alkyl Ethers ◽  
Antibacterial And Antifungal

Several 6- and 7-alkoxy-2-oxo-2H-chromene-4-carbaldehydes were prepared from corresponding alkyl ethers of 6- and 7-hydroxy-4-methyl-2-oxo-2H-chromen-2-ones by oxidation using selenium dioxide. 6- and 7-Alkoxy-4-methyl-2H-chromenes were obtained with yields of 57-85%. Corresponding 4-carbaldehyde derivatives were prepared with yields of 41-67%. Thiosemicarbazones of these aldehydes with D-galactose moiety were synthesized by reaction of these aldehydes with N-(2,3,4,6-tetra-O-acetyl-β-Dgalactopyranosyl) thiosemicarbazide with yields of 62-74%. These thiosemicarbazones were screened for their antibacterial and antifungal activities in vitro against bacteria, such as Staphylococcus aureus, Escherichia coli, and fungi, such as Aspergillus niger, Candida albicans. Several compounds exhibited strong inhibitory activity with MIC values of 0.78- 1.56 μM, including 8a (against S. aureus, E. coli, and C. albicans), 8d (against E. coli and A. niger), 9a (against S. aureus), and 9c (against S. aureus and C. albicans).

scholarly journals 7-Bromo-[1,2,5]selenadiazolo[3,4-d]pyridazin-4(5H)-one

Molbank ◽  
10.3390/m1229 ◽  
2021 ◽  
Vol 2021 (2) ◽  
pp. M1229
Author(s):  
Timofey N. Chmovzh ◽  
Oleg A. Rakitin
Keyword(s):  
Mass Spectrometry ◽  
Heterocyclic System ◽  
High Resolution Mass Spectrometry ◽  
Uv Spectroscopy ◽  
Hydrolysis Product ◽  
Selenium Dioxide ◽  
Biologically Active ◽  
Photovoltaic Materials ◽  
Organic Photovoltaic Materials ◽  
Ir And Uv Spectroscopy

New heterocyclic systems containing 1,2,5-chalcogenadiazoles are of great interest for the creation of organic photovoltaic materials and biologically active compounds. In this communication, 3,6-dibromopyridazine-4,5-diamine was investigated in reaction with selenium dioxide in order to obtain 4,7-dibromo-[1,2,5]selenadiazolo[3,4-d]pyridazine. We found that 7-bromo-[1,2,5]selenadiazolo[3,4-d]pyridazin-4(5H)-one, the first representative of the new heterocyclic system, was isolated as a hydrolysis product of the corresponding 4,7-dibromoderivative. The structure of the newly synthesized compound was established by means of elemental analysis, high-resolution mass spectrometry, 1H, 13C NMR, IR and UV spectroscopy, and mass spectrometry.

Acetyl Nitrate Mediated Conversion of Methyl Ketones to Diverse Carboxylic Acid Derivatives

2021 ◽  
Author(s):  
Joseph N. Capilato ◽  
Peter J Pellegrinelli ◽  
Josephine Bernard ◽  
Logan Schnorbus ◽  
Shane Philippi ◽  
...  
Keyword(s):  
Carboxylic Acid ◽  
Methyl Ketones ◽  
Oxidative Conversion ◽  
Haloform Reaction ◽  
Acetyl Nitrate

The development of a novel acetyl nitrate mediated oxidative conversion of methyl ketones to carboxylic acid derivatives is described. By analogy to the haloform reaction and supported by experimental and...

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