19430-75-2

Basic information

• Product Name: Phosphorodichloridic acid, 2,4-dichlorophenyl ester
• CAS NO: 19430-75-2
• Molecular Formula: C6H3Cl4O2P
• Molecular Weight: 279.874
• Mol File: 19430-75-2.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: Phosphorodichloridic acid, 2,4-dichlorophenyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: Phosphorodichloridic acid, 2,4-dichlorophenyl ester(19430-75-2)
• EPA Substance Registry System: Phosphorodichloridic acid, 2,4-dichlorophenyl ester(19430-75-2)

Safety Data

• Hazardous Substances Data: 19430-75-2(Hazardous Substances Data)

Upstream product

• 120-83-2 2,4-dichlorophenol 

Downstream Products

• 76679-70-4 2,4-dichlorophenylphosphoditriazolide 
• 102728-44-9 1,2-di-O-stearoyl-sn-glycero-3-phospho-(2,4-dichlorophenol) 
• 14254-41-2 bis(2,4-dichlorodiphenyl) phosphorochloridate 
• 130557-92-5 4-(2,4-Dichloro-phenoxy)-3,5-dioxa-4-phospha-cyclohepta[2,1-a;3,4-a']dinaphthalene 4-oxide 
• 35281-83-5 C₁₀H₁₅Cl₂N₂O₂P 
• 82410-50-2 Phosphoric acid dibenzotriazol-1-yl ester 2,4-dichloro-phenyl ester 
• 38578-26-6 5,5-Bis-bromomethyl-2-(2,4-dichloro-phenoxy)-[1,3,2]dioxaphosphinane 2-oxide 
• 58809-22-6 2,4-dichlorophenyl 4-morpholinylphosphonochloridate 
• 20056-42-2 Phosphorsaeure-2,4-dichlorphenylester 
• 58809-33-9 O^5'-[(2,4-dichloro-phenoxy)-morpholin-4-yl-phosphinoyl]-O^2'-(4-methoxy-tetrahydro-pyran-4-yl)-uridine 
• 58809-29-3 O^5'-[(2,4-dichloro-phenoxy)-morpholin-4-yl-phosphinoyl]-O^2',O^3'-methoxymethanediyl-uridine 
• 35273-20-2 (4-Chloro-phenyl)-phosphoramidic acid 2,4-dichloro-phenyl ester methyl ester 
• 35273-19-9 p-Tolyl-phosphoramidic acid 2,4-dichloro-phenyl ester methyl ester 
• 35281-95-9 Phenyl-phosphoramidic acid 2,4-dichloro-phenyl ester methyl ester 

Relevant articles and documents

Photolysis, oxidation, and hydrolysis of 14C-ethyl prothiofos [O-(2, 4-dichlorophenyl) O-ethyl S-propyl phosphorodithioate]

The chemical stability of the widely used organophosphorus insecticide 14C-prothiofos was studied. For this study prothiofos insecticide and some of its degradation products have been prepared. The oxon of the parent compound was obtained through the oxidation of the insecticide with various oxidizing agents, where yields depended on the type and nature of oxidizing agent. The effect of ultraviolet light and direct sunlight on prothiofos were investigated. Exposure to direct sunlight caused gradual degradation of prothiofos giving the same products as UV irradiation.The hydrolysis of 14C-prothiofos at pH 5, 7, 8, and 9 in buffered aqueous media at 25C, 40C and 55C was studied. The results indicated that prothiofos was stable in acid medium, but it was hydrolyzed to 2,4-dichlorophenol and O-ethyl S-propyl phosphorodithioate in alkaline medium.The degradation products identified by TLC and GC/MS were prothiofos oxon, O-ethyl S-propyl phosphordithioate, des-propyl thioprothiofos, prothiofos oxon sulfoxide, and one unknown compound in addition to the parent compound. The phenolic compound was identified by GC/MS and by its color.Supplemental materials are available for this article. Go to the publisher's online edition of Phosphorus, Sulfur, and Silicon and the Related Elements to view the free supplemental file. Copyright Taylor & Francis Group, LLC.

Preparation of 3-substituted cephalosporins

There is described a process for preparing an enamine of formula (IX): STR1 where R2 is a carboxylic acid protecting group and R3 is the residue of a carboxylic acid derived acyl group and where R5 and R6 are the same or different C1-4 alkyl or C7-10 aralkyl groups; or taken together with the adjacent nitrogen atom form a heterocyclic ring containing from 4 to 8 carbon atoms and optionally a further heteroatom selected from oxygen and nitrogen; by reacting a compound of formula (XII): STR2 with an amine of formula HNR5 R6, the reactant of formula (XII) being prepared by reaction of an appropriate enol derivative with a phosphorus reagent. The enamines of formula (IX) are useful in the preparation of 3-hydroxycephalosporins.