35948-26-6

Usage

Uses

Used in Flame Retardant Applications:
6H-Dibenz(c,e)(1,2)oxaphosphorin-6-methanol 6-oxide is used as a flame retardant in various industries to enhance the fire resistance of materials. Its chemical structure allows it to slow down the combustion process, providing a protective layer that reduces the risk of fire and smoke.
Used in Polymer and Plastics Industry:
In the polymer and plastics industry, 6H-Dibenz(c,e)(1,2)oxaphosphorin-6-methanol 6-oxide is used as an additive to improve the flame retardancy of these materials. Its incorporation into polymers and plastics helps to meet safety standards and regulations, ensuring the production of safer and more durable products.
Used in Environmental and Health Safety:
Proper handling, management, and disposal of 6H-Dibenz(c,e)(1,2)oxaphosphorin-6-methanol 6-oxide are crucial due to its potential toxicity and harmful effects on human health and the environment. It is used in the development of guidelines and regulations to minimize its impact on the environment and ensure the safety of workers and consumers.

InChI:InChI=1/C13H11O3P/c14-9-17(15)13-8-4-2-6-11(13)10-5-1-3-7-12(10)16-17/h1-8,14H,9H2

Upstream product

• 50-00-0 formaldehyd 
• 35948-24-4 2-(2-hydroxyphenyl)-phenylphosphonous acid 
• 35948-25-5 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide 
• 90-43-7 2-Phenylphenol 
• 32186-92-8 6-Chloro-6H-dibenz<1,2>oxaphosphorin 

Relevant academic research and scientific papers

Solubilities of 2-(6-Oxido-6H-dibenz[c,e][1,2]oxaphosphorin-6-yl)-methanol in the Selected Solvents

The flame retardant 2-(6-oxido-6H-dibenz[c,e][1,2]oxaphosphorin-6-yl)- methanol (ODOPM) for epoxy resins was prepared by the reaction of 2-(2-hydroxyphenyl)phenylphosphonic acid (HBP) with paraformaldehyde. The syntheses method is simple and can lower the production costs than conventional method. The basic solubilities data of ODOPM in water (303.57 to 361.63) K as required in the new process and in p-xylene (302.95 to 360.65) K as in the conventional process were measured. The solubilities of ODOPM in acetone, ethyl acetate, benzene, and toluene were also measured for comparison.

DOPO methylol derivative DOPO-CH2OH preparation method

The invention belongs to the technical field of organic synthesis, and specifically discloses a DOPO methylol derivative DOPO-CH2OH preparation method, wherein DOPO-CH2OH is prepared through a reaction of paraformaldehyde and DOPO by using diethylene glycol dimethyl ether, diethylene glycol diethyl ether or diethylene glycol dibutyl ether as a reaction solvent under the catalytic action of 98% sulfuric acid or p-toluenesulfonic acid, and the yield is more than 95%. According to the present invention, the method has characteristics of safe and environmentally-friendly reaction process, simpleness, no requirement of special equipment and easily-controlled reaction, can substantially reduce the risk of safety and environmental protection accidents, and is suitable for large-scale production.

DOPO-phthalimide derivative, and preparation method and application thereof

The invention provides a DOPO-phthalimide derivative with a structure as shown in a formula I which is described in the specification. The invention also provides a preparation method for the DOPO-phthalimide derivative. The preparation method comprises t

DOPO-modified cyclophosphazene fire retardant and preparation and application thereof

The invention relates to a DOPO-modified cyclophosphazene fire retardant and preparation and application thereof. The structural formula of the fire retardant is as shown in the specification. According to the preparation, a DOPO hydroxymethyl derivative DOPO-CH2OH, phosphonitrilic chloride trimer and an acid binding agent react in a solvent so as to obtain the fire retardant. The DOPO-modified cyclophosphazene fire retardant is used as a blending additive flame retardant to be applied to thermosetting or thermoplastic polymers, or is used as a fire retardant for after-treatment to be applied in flame-proof treatment of textile. The prepared fire retardant is a phosphorus-nitrogen type fire retardant, and has good flame resistance, contains no halogen and is beneficial to environmental protection.

Synthesis of a novel highly effective flame retardant containing multivalent phosphorus and its application in unsaturated polyester resins

Unsaturated polyester resin (UP) as one of the most important thermoset materials often exhibits serious fire hazards. Conventional phosphorus-containing reactive flame ratardants could overcome the deficiency of additive flame retardants in UP, but they

Synthesis of flame-retardant phosphaphenanthrene derivatives with high phosphorus contents

Two novel types of phosphate derivatives of phosphaphenanthrene with a high phosphorus content were prepared by phosphorylation reaction between either 2-(6-oxido-6H-dibenzc,e1,2oxaphosphorin-6-yl)-methanol (ODOPM) or 2-(6-oxido-6H-dibenzc,e1,2.oxaphosphorin-6-yl)-1,4-benzenediol (ODOPB) and dialkyl phosphoryl chloride. The structures of all compounds were characterised by 1H NMR, 13C NMR, 31P NMR, Fourier transform infrared spectroscopy, and high-resolution mass spectrometry. The thermal stability of representative compounds was determined by thermal gravimetric analysis and differential scanning calorimetry. The results showed that the compounds have excellent resistance to oxidation, high thermal stability with an onset decomposition temperature above 200°C, and a high char yield over 25 %, owing to the high P content. The representative compound was added to conventional electrolytes of lithium-ion batteries as flame retardant additive, and the self-extinguishing time and ionic conductivity were measured. The result showed that the compounds have effective flame retardant properties.

PROCESS FOR PRODUCTION OF PHOSPHORUS-ATOM-CONTAINING PHENOL, NOVEL PHOSPHORUS-ATOM-CONTAINING PHENOL, CURABLE RESIN COMPOSITION, CURED PRODUCT THEREOF, PRINTED CIRCUIT BOARD, AND SEMICONDUCTOR SEALING MATERIAL

Provided are a method for producing a phosphorus-containing phenolic compound in which reactivity is considerably excellent in the reaction between a phosphorus-containing compound and an aromatic nucleus of a phenol; in the case of using a polyhydric phenol or a phenolic resin as the phenol, a novel phosphorus-containing phenolic compound that serves as a curing agent for an epoxy resin and imparts excellent heat resistance to a cured product; a curable resin composition containing the novel phosphorus-containing phenolic compound; a cured product of the curable resin composition; a printed wiring board; and a semiconductor sealing material. An aromatic aldehyde (a1) having an alkoxy group as a substituent on an aromatic nucleus is allowed to react with an organic phosphorus compound (a2) intramolecularly having a P-H group or a P-OH group. The resultant reaction product is then allowed to react with a phenol (a3).

A Novel Synthesis of 6-Hydroxyalkyl- and 6-Hydroxyaralkyl-6H-dibenzoxaphosphorin 6-Oxides

A new strategy for the synthesis of 6-hydroxyalkyl- and 6-hydroxyaralkyl-6H-dibenzoxaphosphorin 6-oxides 3 was achieved by the reaction of 2-(2-hydroxyphenyl)phenylphosphonic acid (1) with various carbonyl compounds 2.The desired products 3 were