1333211-11-2Relevant academic research and scientific papers
Synthesis and insecticidal activities of O,O-dialkyl-2-[3-bromo-1-(3-chloropyridin-2-yl)-1H-pyrazole-5-carbonyloxy] (aryl) methylphosphonates
Wang, Wei,Wang, Lie-Ping,Ning, Bin-Ke,Mao, Ming-Zhen,Xue, Chao,Wang, Hai-Yang
, p. 1362 - 1367 (2016)
A series of novel O,O-Dialkyl-2-[3-bromo-1-(3-chloropyridin-2-yl)-1H-pyrazole-5-carbonyloxy](aryl) methy-lphosphonates I-1–14 were designed and synthesized. The structures of all the title compounds were confirmed by 1H-NMR, 13C-NMR, 31P-NMR, IR and elemental analysis. Their insecticidal activities against Mythimna separata and Plutella xylostella were evaluated. The results of bioassays indicated that the title compounds exhibited 20–80% larvicidal activity against Mythimna separata at 1000?mg/L.
Ultrasound assisted green synthesis of α-hydroxyphosphonates under solvent-free conditions
Bouzina, Abdeslem,Aouf, Nour-eddine,Berredjem, Malika
, p. 5993 - 6002 (2016/06/01)
Abstract: A simple, efficient and environmentally benign method for the synthesis of α-hydroxyphosphonates by reaction of an aldehyde or a ketone, and trialkylphosphite is effectively accomplished under ultrasound irradiation and solvent-free and catalyst
N-heterocyclic carbenes catalyzed phospho-aldol reaction of aldehydes
He, Lin,Cai, Zhihua,Ma, Xiaowei,Du, Guangfen
, p. 1573 - 1576 (2014/01/06)
An efficient phospho-aldol reaction of aldehydes catalyzed by N-heterocyclic carbenes (NHCs) has been developed. With 10 mol% stable NHC 1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene, various aldehydes reacted with dialkylphosphites smoothly to provide α-hydroxy phosphonates in 59% -99% yield. In this process, NHC was assumed to function as a carbon-centered bronsted base. Copyright
N-heterocyclic carbene catalyzed hydrophosphonylation of aldehydes
Cai, Zhi-Hua,Du, Guang-Fen,He, Lin,Gu, Cheng-Zhi,Dai, Bin
experimental part, p. 2073 - 2078 (2011/08/05)
N-Heterocyclic carbene catalyzed Pudovik-type reaction of dimethyl trimethylsilyl phosphite and aldehydes for the construction of carbon-phosphorus bonds have been developed, providing -hydroxyphosphonates in moderate to excellent yield. Georg Thieme Verl
