770-12-7 Usage
Chemical Description
Phenyl dichlorophosphate is an organophosphorus compound used as a phosphorylating agent.
Uses
Different sources of media describe the Uses of 770-12-7 differently. You can refer to the following data:
1. In organic synthesis for preparation of lactams, phosphate diesters and for oxidation reactions.
2. Reagent for preparation of phosphate diesters.Phenyl phosphorodichloridate is used in the preparation of symmetrical phosphate diesters. It is used as a phosphorylating agent for alcohols and amines. It is also involved in the preparation of phenylphosphoro di-(1-imidazolidate) and 2-phenyl-bis-triazoloylphosphate, which is used in peptide synthesis. It plays a vital role in the Pfitzner-Moffatt oxidation which involves oxidation of alcohols to the corresponding aldehydes and ketones. Furthermore, it is utilized in Beckmann rearrangement for the preparation of N-phenylacetamide from acetophenone oxime.
3. Reagent for the preparation of phosphate diesters.
Preparation
The preparation of?Phenyl dichlorophosphate is as follows:160 g (1 mol) of phosphorus oxychloride and 1 g of titanium tetrachloride were respectively added to a four-necked flask to carry out the reaction, and the temperature was raised to 70-80° C., and phenol (94 g, 1 mol) was slowly added dropwise. The phenol addition time was about 2- 3 hours,After completion of the dropwise addition, the reaction is maintained at 80-90° C. for 3-5 hours. After no hydrogen chloride is evolved, the reaction is completed. After the reaction, the phosphorus oxychloride is distilled under reduced pressure, the vacuum degree is 30-100 KPa, and the distillation temperature is 30-100° C. Distillation under reduced pressure to obtain the intermediate of the mixture, a mono-substituted and di-substituted mixture of phosphorus oxychloride, the ratio of the mixture is 5:5, gas phase analysis to obtain the intermediate of the mixture, the yield of the intermediate is 95%, phosphorus oxychloride The recovery rate is 95% (calculated as phosphorus oxychloride).
General Description
A liquid. May severely irritate skin, eyes and mucous membranes.
Air & Water Reactions
About the same density as water and moderately soluble in water.
Reactivity Profile
An hologenated organophosphate. Organophosphates are susceptible to formation of highly toxic and flammable phosphine gas in the presence of strong reducing agents such as hydrides. Partial oxidation by oxidizing agents may result in the release of toxic phosphorus oxides.
Health Hazard
TOXIC; inhalation, ingestion or skin contact with material may cause severe injury or death. Contact with molten substance may cause severe burns to skin and eyes. Avoid any skin contact. Effects of contact or inhalation may be delayed. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution.
Fire Hazard
Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes. Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.). Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated.
Check Digit Verification of cas no
The CAS Registry Mumber 770-12-7 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 7,7 and 0 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 770-12:
(5*7)+(4*7)+(3*0)+(2*1)+(1*2)=67
67 % 10 = 7
So 770-12-7 is a valid CAS Registry Number.
InChI:InChI=1/C6H5Cl2O2P/c7-11(8,9)10-6-4-2-1-3-5-6/h1-5H
770-12-7Relevant articles and documents
Prodrug compound and application ofprodrug compound in treatment of cancer
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Paragraph 0140-0141, (2021/03/06)
The present invention provides a compound indicated by a formula (I), pharmaceutically acceptable salts or esters thereof, a pharmaceutical composition of the compound, and application of the compoundand the pharmaceutical composition in the inhibition or regulation of the activity of tyrosine kinase and treating disease symptoms or symptoms including cancer mediated by tyrosine kinase.
Organophosphorous phenyl phosphates: Synthesis, dye/protein interactions and antimicrobial evaluation
Ameta, Rakesh Kumar,Duan, Yongtao,Koshti, Rohit R.,Muddassir, Mohd.,Patel, Amee S.,Trivedi, Nidhi S.,Vyas, Akshay
, (2021/01/09)
A series of Phenyl Phosphates (PPs) has been synthesized and characterized with FTIR spectroscopy. PPs, the product of the reaction of phenol and phosphoryl chloride followed by hydrolysis having larger number of hydrophilic hydroxyl groups, used for the dye interaction and antimicrobial activities. Interaction of PPs with 1,2-diphenyldiazene and 4-(phenyldiazene)phenol were studied through UV/ Vis method where observed hypochromic effect has revealed the dye adsorption property of PPs. Similarly PPs have shown the interaction with bovine serum and human serum albumins where the weaker interaction observed with later. Antimicrobial in vitro evaluation has been assessed on the basis of zone of inhibition with six bacterial (gram +ve and –ve) strains. Since PPs were found very active so minimal inhibitory concentration (MIC) analysis was done where all PPs have shown MIC less than 5 μg/mL. Due to high number of hydroxyl groups PPs have shown good interactions with biomolecules and cell wall of bacteria therefore this impression has predicted their future in medicinal field.
Preparation method of pentaerythritol diphosphate
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Paragraph 0032; 0044-0045; 0047-0048; 0050-0051, (2020/09/12)
The invention relates to the technical field of organic synthesis, and provides a preparation method of pentaerythritol diphosphate. The phosphoryl dichloride compound is prepared from a phenolic compound and phosphorus oxychloride under the condition of a catalyst, the yield of the phosphoryl dichloride compound is high, the activity of the phosphoryl dichloride compound is high, and the next step of reaction can be directly carried out without drying; then the phosphoryl dichloride compound is reactd with pentaerythritol under the vacuum pressure reduction condition, acid generated in the reaction can be rapidly removed under the vacuum pressure reduction condition, and the reaction can be carried out in the forward direction; furthermore, a phosphoryl dichloride compound is dropwise added, after dropwise adding is completed, esterification can be completed basically by one acyl chloride, and at the moment, an acid-binding agent is added, so that esterification of a second acyl chloride is facilitated, and the reaction time is greatly shortened; and the reaction temperature can be reduced under the vacuum decompression condition, the problems of acidolysis of pentaerythritol diphosphate and reaction with hydrogen chloride are avoided, the reaction safety and operability are improved, and the reaction efficiency is improved.
