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| CAS No.: | 36916-19-5 |
|---|---|
| Name: | 5-CHLOOR-2-(3-METHYL-4H-1,2,4-TRIAZOOL-4-YL)BENZOFENON |
| Molecular Structure: | |
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| Formula: | C16H12 Cl N3 O |
| Molecular Weight: | 297.744 |
| Synonyms: | Benzophenone,5-chloro-2-(3-methyl-4H-1,2,4-triazol-4-yl)- |
| Density: | 1.291g/cm3 |
| Boiling Point: | 529.798°C at 760 mmHg |
| Flash Point: | 274.212°C |
| PSA: | 47.78000 |
| LogP: | 3.46010 |

7-Chloro-1-methyl-5-phenyl-s-triazolo<4,3-a>quinoline


5-chloro-2-(3-methyl-4H-1,2,4-triazol-4-yl)benzophenone

| Conditions | Yield |
|---|---|
| With potassium permanganate; sodium periodate; potassium carbonate In water; acetone for 100.7h; | 72.1% |
| Multi-step reaction with 2 steps 1: 20.8 percent / ozone in oxygen / methanol; CH2Cl2 / 12 h / cooling in an ice bath 2: 59.7 percent / AgNO3, 1N NaOH / methanol; H2O / 18 h / Ambient temperature View Scheme |

4-(2-benzoyl-4-chlorophenyl)-5-methyl-4H-1,2,4-triazole-3-carboxaldehyde


5-chloro-2-(3-methyl-4H-1,2,4-triazol-4-yl)benzophenone

| Conditions | Yield |
|---|---|
| With sodium hydroxide; silver nitrate In methanol; water for 18h; Ambient temperature; | 59.7% |

alprazolam

A

5-chloro-2-(3-methyl-4H-1,2,4-triazol-4-yl)benzophenone

| Conditions | Yield |
|---|---|
| In methanol at 50℃; for 360h; aq. buffer; Irradiation; | A n/a B 50.65% |

7-Chloro-1-methyl-5-phenyl-s-triazolo<4,3-a>quinoline

A

C17H12ClN3O

B

5-chloro-2-(3-methyl-4H-1,2,4-triazol-4-yl)benzophenone

C

4-(2-benzoyl-4-chlorophenyl)-5-methyl-4H-1,2,4-triazole-3-carboxaldehyde

| Conditions | Yield |
|---|---|
| With ozone In methanol; dichloromethane at 0℃; for 12h; | A 4% B 43.5% C 20.8% |


7-Chloro-1-methyl-5-phenyl-s-triazolo<4,3-a>quinoline

A

5-chloro-2-(3-methyl-4H-1,2,4-triazol-4-yl)benzophenone

B

4-(2-benzoyl-4-chlorophenyl)-5-methyl-4H-1,2,4-triazole-3-carboxaldehyde

| Conditions | Yield |
|---|---|
| With ruthenium(IV) oxide; sodium periodate In water; acetone at 0 - 4℃; for 23.5h; | A 20.8% B 18% |

alprazolam


5-chloro-2-(3-methyl-4H-1,2,4-triazol-4-yl)benzophenone

| Conditions | Yield |
|---|---|
| With hydrogenchloride In methanol |

alprazolam

A

U 31957

B

5-chloro-2-(3-methyl-4H-1,2,4-triazol-4-yl)benzophenone

| Conditions | Yield |
|---|---|
| With hydrogenchloride In water for 8h; pH=3.6; Kinetics; Further Variations:; pH-values; UV-irradiation; |


2,6-dichloro-4-phenylquinoline


5-chloro-2-(3-methyl-4H-1,2,4-triazol-4-yl)benzophenone

| Conditions | Yield |
|---|---|
| Multi-step reaction with 4 steps 1: 74.5 percent / hydrazin hydrate / 1 h / Heating 2: 83.9 percent / xylene / 2.67 h / Heating 3: 20.8 percent / ozone in oxygen / methanol; CH2Cl2 / 12 h / cooling in an ice bath 4: 59.7 percent / AgNO3, 1N NaOH / methanol; H2O / 18 h / Ambient temperature View Scheme |

6-chloro-2-hydrazino-4-phenylquinoline


5-chloro-2-(3-methyl-4H-1,2,4-triazol-4-yl)benzophenone

| Conditions | Yield |
|---|---|
| Multi-step reaction with 3 steps 1: 83.9 percent / xylene / 2.67 h / Heating 2: 20.8 percent / ozone in oxygen / methanol; CH2Cl2 / 12 h / cooling in an ice bath 3: 59.7 percent / AgNO3, 1N NaOH / methanol; H2O / 18 h / Ambient temperature View Scheme |

5-chloro-2-(3-methyl-4H-1,2,4-triazol-4-yl)benzophenone


5-chloro-2-[3-(hydroxymethyl)-5-methyl-4H-1,2,4-triazol-4-yl] benzophenone

| Conditions | Yield |
|---|---|
| With paraformaldehyde In 5,5-dimethyl-1,3-cyclohexadiene | 72.8% |