Reaction #2383766

ord-48b74fdb733349b5a3067534f378c7de

Reaction equation

Cc1n[nH]cc1Cl
4-chloro-3-methylpyrazole
O=P(O)(O)O
phosphoric acid
O=P(O)(O)O
phosphoric acid
→
Cc1[nH][nH+]cc1Cl.O=P([O-])(O)O
4chloro-3-methylpyrazolium dihydrogen phosphate
Yield 98.0%

Reactants

Cc1n[nH]cc1Cl
4-chloro-3-methylpyrazole
O=P(O)(O)O
phosphoric acid
O=P(O)(O)O
phosphoric acid

Reagents

None

Solvents

O
water

Conditions

Detailed conditions
See reaction.notes.procedure_details.

Workup

  1. 1
    Otherwas evaporated
  2. 2
    workup.WAITAfter a few hours
  3. 3
    Otherthe title compound crystallized out of the oil initially present (yield 98%)

Procedure

116 g (1.0 mol) of 4-chloro-3-methylpyrazole were dissolved in 115 g (1.0 mol) of phosphoric acid (85%) at room temperature. The water contained in the phosphoric acid was evaporated. After a few hours, the title compound crystallized out of the oil initially present (yield 98%).

Source

DOI: 10.6084/m9.figshare.5104873.v1Patent: US06488734B1uspto-grants-2002_12