1986
DOI: 10.1002/chin.198651216
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ChemInform Abstract: Ethyl‐p‐nitrophenyl Esters of Halogenoalkanephosphonic Acids.

Abstract: Die Phosphonsäureesterchloride (I) reagieren mit Natrium‐p‐nitrophenolat (II) in Acetonitril zu den gemischten Phosphonsäureestern (III).

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“…47 However, the addition of a tertiary amine (pyridine 48,49 and triethylamine [50][51][52][53][54][55] ) remains the most widely used method to trap the hydrogen chloride. The direct addition of sodium alcoholate 56 is also a useful synthetic method. 66 The reaction of chloromethylphosphonyl dichloride with trialkylsilanol acetates yields organosilicon esters of chloromethylphosphonic acids.…”
Section: Chloromethylphosphonatesmentioning
confidence: 99%
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“…47 However, the addition of a tertiary amine (pyridine 48,49 and triethylamine [50][51][52][53][54][55] ) remains the most widely used method to trap the hydrogen chloride. The direct addition of sodium alcoholate 56 is also a useful synthetic method. 66 The reaction of chloromethylphosphonyl dichloride with trialkylsilanol acetates yields organosilicon esters of chloromethylphosphonic acids.…”
Section: Chloromethylphosphonatesmentioning
confidence: 99%
“…Hemi-ethanolysis in the presence of triethylamine allows the synthesis of ethyl dichloromethyl chlorophosphonate (Cl(EtO)P(O)CHCl 2 ) and further alcoholysis with 4nitrophenol gives the mixed dichloromethylphosphonate diester in 57 % yield. 56 Reduction reaction : The chemical reduction of trichloromethylphosphonate via halogenmetal exchange with n-butyllithium followed by acidic hydrolysis gives diethyl dichloromethylphosphonate in moderate yield (55 %). 106 The yield was improved to 65 % by trapping the intermediate lithiodichloromethylphosphonate with trimethylsilyl chloride.…”
Section: Dichloromethylphosphonatesmentioning
confidence: 99%
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