5-(4-NITRO-PHENYL)-2H-TETRAZOLE Chemical Properties

Melting point:

223°C (dec.)

Boiling point:

435.3±47.0 °C(Predicted)

Density 

1.534±0.06 g/cm3(Predicted)

storage temp. 

Sealed in dry,Room Temperature

pka

3.38±0.10(Predicted)

Appearance

Yellow to brown Solid

Water Solubility 

Insoluble in water. Soluble in DMSO.

BRN 

192840

CAS DataBase Reference

16687-60-8(CAS DataBase Reference)

Safety Information

Hazard Codes 

Xi

Risk Statements 

36/37/38

Safety Statements 

26-36

Hazard Note 

Irritant

HS Code 

2933998090

MSDS

• Language:English Provider:ALFA

5-(4-NITRO-PHENYL)-2H-TETRAZOLE Usage And Synthesis

Uses

It is used as a reagent used as activator for both solution- and solid-phase synthesis of oligonucleotides using the phosphoramidite method.

Synthesis

The general procedure for the synthesis of 5-(4-nitrophenyl)-1H-tetrazole from 4-nitrophenyl aldoxime was as follows: InCl3 (3 mol%) was added to a stirred solution of DMF (5 mL) containing appropriate amounts of aldoxime (1 mmol) and NaN3 (1.5 mmol). The reaction mixture was heated to 120 °C. After completion of the reaction (monitored by TLC), the mixture was cooled to room temperature. H2O (5 mL), 2M HCl aqueous solution (10 mL) and EtOAc (10 mL) were added sequentially with vigorous stirring for 15 minutes. The organic layer was separated and the aqueous layer was extracted with EtOAc (3 x 15 mL). The organic extracts were combined, washed with H2O, dried over anhydrous Na2SO4 and filtered. The solvent was evaporated under reduced pressure and the crude product was purified by silica gel column chromatography [eluent: EtOAc-hexane (9:1)].

References

[1] Synlett, 2016, vol. 27, # 8, p. 1241 - 1244
[2] Tetrahedron Letters, 2012, vol. 53, # 29, p. 3706 - 3709
[3] Synthesis (Germany), 2018, vol. 50, # 6, p. 1293 - 1300
[4] Synlett, 2016, vol. 27, # 15, p. 2225 - 2228
[5] Tetrahedron Letters, 2016, vol. 57, # 5, p. 523 - 524

5-(4-NITRO-PHENYL)-2H-TETRAZOLE(16687-60-8)Related Product Information

• M-nitrobenzene
• 1H-TETRAZOLE
• 5-CHLOROMETHYL-1-(4-NITRO-PHENYL)-1H-TETRAZOLE
• Iodonitrotetrazolium chloride
• 1-[5-(BENZYLOXY)-2,4-DICHLOROPHENYL]-5-(4-NITROPHENYL)-1H-1,2,3,4-TETRAAZOLE
• 2,5-DI(4-NITROPHENYL)-3-(4-(4-SULFOPHENYLAZO)-2-SULFOPHENYL)-2H-TETRAZOLIUM SODIUM SALT
• ETHYL 2-(2,4-DICHLORO-5-[5-(4-NITROPHENYL)-1H-1,2,3,4-TETRAAZOL-1-YL]PHENOXY)ACETATE
• Tetranitroblue tetrazolium chloride
• BCIP/TNBT
• 2-(2-Piperidinoethyl)-5-(4-nitrophenyl)tetrazole hydrate
• 5-(4-NITRO-PHENYL)-2H-TETRAZOLE
• 5-(4-NITROPHENYL)-2H-TETRAZOL-2-YLACETIC ACID
• 1-(2,4-DICHLORO-5-METHOXYPHENYL)-5-(4-NITROPHENYL)-1H-1,2,3,4-TETRAAZOLE
• BUTTPARK 10\01-13