ChemicalBook CAS DataBase List Sodium p-toluenesulfinate

Sodium p-toluenesulfinate synthesis

12synthesis methods

Product Name:Sodium p-toluenesulfinate
CAS Number:824-79-3
Molecular formula:C7H7NaO2S
Molecular Weight:178.18

98-59-9 Synthesis

98-59-9
586 suppliers
$9.00/5g

824-79-3
402 suppliers
$6.00/25g

Yield:824-79-3 97.8%

Reaction Conditions:

with hydrazine hydrate;sodium carbonate in water at 80; for 2 h;

Steps:

2

General procedure: A preparation method of substituted sulfinate, taking benzenesulfonyl chloride hydrolysis and reduction to obtain sodium benzenesulfinate as an example:Add 20.1g (0.402mol) of hydrazine hydrate to 300g of water, add 40.8g (0.385mol) of sodium carbonate and dissolve at a temperature of 60.After 111 g (0.629 mol) of benzenesulfonyl chloride was added dropwise, the reaction was incubated for 2 hours, and the synthetic solution was cooled and filtered to obtain the sodium salt of benzenesulfinic acid. The purity was analyzed by HPLC. The results are summarized in Table 1.

References:

CN112094210,2020,A Location in patent:Paragraph 0023-0029