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22749-43-5

Basic Information
CAS No.: 22749-43-5
Name: 6-Chlorobenzo[c][1,2]benzoxaphosphinine
Article Data: 25
Molecular Structure:
Molecular Structure of 22749-43-5 (6-Chlorobenzo[c][1,2]benzoxaphosphinine)
Formula: C12H8 Cl O P
Molecular Weight: 234.622
Synonyms: 6-Chloro-6H-dibenz-[c,e][1,2]-oxaphosphorin;6-Chloro-6H-dibenz[c,e][1,2]oxaphosphorin; 6-Chlorodibenz[c,e][1,2]oxaphosphorin
Melting Point: 87ºC
Boiling Point: 374.6 °C at 760 mmHg
Flash Point: 180.3 °C
PSA: 22.82000
LogP: 3.92200
Synthetic route
33771-47-0

2-Phenylphen-1-oxydichlorphosphan

22749-43-5

p-chlorodibenzo[c.e][1,2]oxaphosphorine

Conditions
ConditionsYield
With zinc(II) chloride at 150℃; for 2h;100%
With zinc(II) chloride at 194℃; for 1.25h;79%
With aluminium trichloride In n-heptane
With zinc(II) chloride at 250℃; for 2h;
With zinc at 180℃; for 3h; Inert atmosphere;
90-43-7

2-Phenylphenol

22749-43-5

p-chlorodibenzo[c.e][1,2]oxaphosphorine

Conditions
ConditionsYield
With zinc(II) chloride; phosphorus trichloride at 20 - 180℃; for 7h;100%
With anhydrous phosphorus trichloride; phosphorus trichloride; Zinc chloride In 5,5-dimethyl-1,3-cyclohexadiene95%
Stage #1: 2-Phenylphenol With phosphorus trichloride at 140℃; for 5h; Inert atmosphere; Neat (no solvent);
Stage #2: With zinc(II) chloride at 210℃; for 3h; Inert atmosphere; Neat (no solvent);
90%
90-43-7

2-Phenylphenol

diphenyl ether , 4-oxy-diphenyl

diphenyl ether , 4-oxy-diphenyl

22749-43-5

p-chlorodibenzo[c.e][1,2]oxaphosphorine

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: phosphorus trichloride / 5 h / 148 °C
2: 79 percent / ZnCl2 / 1.25 h / 194 °C
View Scheme
90-43-7

2-Phenylphenol

7719-12-2, 52843-90-0

phosphorus trichloride

22749-43-5

p-chlorodibenzo[c.e][1,2]oxaphosphorine

Conditions
ConditionsYield
Zinc chloride In toluene
35948-25-5

9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide

22749-43-5

p-chlorodibenzo[c.e][1,2]oxaphosphorine

Conditions
ConditionsYield
With phosphorus trichloride In chloroform for 3h; Inert atmosphere; Reflux;
With phosphorus trichloride In chloroform for 4h; Inert atmosphere; Reflux;
25072-46-2

9,10-dihydro-9-oxa-10-phosphaphenanthrene

22749-43-5

p-chlorodibenzo[c.e][1,2]oxaphosphorine

Conditions
ConditionsYield
With phosphorus trichloride In chloroform for 3h; Inert atmosphere; Reflux;
2752-19-4

tris(2-phenylphenyl)phosphite

22749-43-5

p-chlorodibenzo[c.e][1,2]oxaphosphorine

Conditions
ConditionsYield
With zinc(II) chloride; phosphorus trichloride at 200℃; for 4h; Temperature;35 g
1806-29-7

2,2'-dihydroxybiphenyl

22749-43-5

p-chlorodibenzo[c.e][1,2]oxaphosphorine

Conditions
ConditionsYield
With phosphorus trichloride In toluene at 140℃; for 8h; Cooling with ice;
22749-43-5

p-chlorodibenzo[c.e][1,2]oxaphosphorine

108-78-1

2,4,6-triamino-s-triazine

2,4,6-tris(9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-ylamino)-1,3,5-triazine

Conditions
ConditionsYield
With 1-methyl-1H-imidazole at 100℃; for 16h; Inert atmosphere;100%
22749-43-5

p-chlorodibenzo[c.e][1,2]oxaphosphorine

C20H17O3P

1631149-46-6

6H-dibenz[c,e][1,2]oxaphosphorin,6'6-(1,2-phenethyl)bis-,6'6-dioxide

Conditions
ConditionsYield
Stage #1: p-chlorodibenzo[c.e][1,2]oxaphosphorine; C20H17O3P With triethylamine at 10℃; for 2h;
Stage #2: With Methyl benzenesulfonate at 100 - 150℃; for 5h;
99.3%
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Chemistry

Molecular Formula: C12H8ClOP
Molecular Weight: 234.62
Flash Point: 180.3 °C
Melting Point: 87°C
CAS Registry Number: 22749-43-5
Enthalpy of Vaporization: 59.76 kJ/mol 
Vapour Pressure: 1.78E-05 mmHg at 25°C 
IUPAC Name: 6-chlorobenzo[c][1,2]benzoxaphosphinine
Boiling Point of 6-Chloro-6H-dibenzo[c,e][1,2]oxaphosphinine (CAS NO.22749-43-5): 374.6 °C at 760 mmHg 
Synonyms: 6-Chlorodibenz[c,e][1,2]oxaphosphorin (CAS NO.22749-43-5) ; 6-Chloro-6H-dibenzo[c,e][1,2]oxaphosphinine ; 6-chlorobenzo[C][1,2]benzoxaphosphinine ; 10-Chloro-9,10-Dihydro-9-oxa-10-phosphaphenanthrene ; 6-Chloro-6H-dibenz[c,e][1,2]oxaphosphorin
Following is the molecular structure of 6-Chloro-6H-dibenzo[c,e][1,2]oxaphosphinine (CAS NO.22749-43-5):