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| CAS No.: | 7211-39-4 |
|---|---|
| Name: | DIMETHYLPHOSPHINE OXIDE |
| Article Data: | 19 |
| Molecular Structure: | |
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|
| Formula: | C2H7OP |
| Molecular Weight: | 78.0507 |
| Synonyms: | Dimethylphosphine oxide; |
| EINECS: | 230-591-2 |
| Boiling Point: | 84.5 °C at 760 mmHg |
| Flash Point: | 4.906 °C |
| PSA: | 40.54000 |
| LogP: | 0.80570 |
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- 75-16-1
methylmagnesium bromide
- 762-04-9
phosphonic acid diethyl ester
- 7211-39-4
dimethyl phosphine oxide
| Conditions | Yield |
|---|---|
| In tetrahydrofuran at 0 - 20℃; for 16h; Inert atmosphere; | 88.79% |
| In tetrahydrofuran; diethyl ether at 0 - 20℃; for 0.5h; Inert atmosphere; | 63.66% |
| In tetrahydrofuran at 0 - 20℃; for 5h; |
- 676-58-4
methylmagnesium chloride
- 762-04-9
phosphonic acid diethyl ester
- 7211-39-4
dimethyl phosphine oxide
| Conditions | Yield |
|---|---|
| With potassium carbonate In tetrahydrofuran at 0℃; for 4h; | 81.39% |
| In tetrahydrofuran Ambient temperature; | 80% |
| In tetrahydrofuran at 30℃; for 1h; Cooling with ice; | 70.8% |
| In tetrahydrofuran at 20 - 30℃; for 1h; Cooling with ice; | 70.8% |
| (i) THF, (ii) aq. K2CO3; Multistep reaction; |
- 74-87-3
methylene chloride
A
- 16394-14-2
dimethylphosphinic acid sodium salt
B
- 2914-38-7, 20677-21-8, 20677-23-0
methylphosphonic acid disodium salt
C
- 7211-39-4
dimethyl phosphine oxide
D
- 87930-22-1
methylphosphonous acid sodium salt
| Conditions | Yield |
|---|---|
| With sodium hydroxide; phase transfer catalyst; phosphorous Further byproducts given; | A 0.5% B 3.5% C 5% D 72% |
| Conditions | Yield |
|---|---|
| Stage #1: methylmagnesium chloride With phosphonic acid diethyl ester In tetrahydrofuran at 20 - 30℃; for 1h; Stage #2: With potassium carbonate In tetrahydrofuran; water | 70.8% |
| With phosphonic acid diethyl ester In tetrahydrofuran at 0 - 20℃; for 5h; |
- 121-45-9
phosphorous acid trimethyl ester
A
- 512-56-1
trimethyl phosphite
B
- 7211-39-4
dimethyl phosphine oxide
| Conditions | Yield |
|---|---|
| With Bromotrichloromethane In neat (no solvent) at 25℃; for 0.5h; | A 4% B 50% |
| Conditions | Yield |
|---|---|
| With phosphorus; potassium hydroxide; N-benzyl-N,N,N-triethylammonium chloride In 1,4-dioxane at 60 - 62℃; | A 7% B n/a |
| Conditions | Yield |
|---|---|
| With water |
- 20502-88-9
dimethylmethoxyphosphines-d0
- 7211-39-4
dimethyl phosphine oxide
| Conditions | Yield |
|---|---|
| With water at -10℃; |
- 35449-60-6
dimethyl methylthiophosphinite
- 7211-39-4
dimethyl phosphine oxide
| Conditions | Yield |
|---|---|
| With water |
| Conditions | Yield |
|---|---|
| With water |
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Specification
The systematic name of this chemical is dimethylphosphane oxide. With the CAS registry number 7211-39-4 and EINECS 230-591-2, it is also named as phosphorane, dimethyl-, oxide. In addition, the formula is C2H7OP and the molecular weight is 78.05.
The other characteristics of Dimethylphosphine oxide can be summarized as: (1)ACD/LogP: -2.23; (2)# of Rule of 5 Violations: 0; (3)#H bond acceptors: 1; (4)#H bond donors: 0; (5)#Freely Rotating Bonds: 0; (6)Polar Surface Area: 40.54 Å2; (7)Flash Point: 4.906 °C; (8)Enthalpy of Vaporization: 31.144 kJ/mol; (9)Boiling Point: 84.5 °C at 760 mmHg; (10)Vapour Pressure: 80.598 mmHg at 25°C.
People can use the following data to convert to the molecule structure.
1. SMILES:CP(C)=O
2. InChI:InChI=1/C2H7OP/c1-4(2)3/h4H,1-2H3
3. InChIKey:HGDIHUZVQPKSMO-UHFFFAOYAJ
4. Std. InChI:InChI=1S/C2H7OP/c1-4(2)3/h4H,1-2H3
5. Std. InChIKey:HGDIHUZVQPKSMO-UHFFFAOYSA-N