ChemicalBook CAS DataBase List 2-Naphthalenesulfonyl chloride

2-Naphthalenesulfonyl chloride synthesis

9synthesis methods

Product Name:2-Naphthalenesulfonyl chloride
CAS Number:93-11-8
Molecular formula:C10H7ClO2S
Molecular Weight:226.68

532-02-5
352 suppliers
$10.00/10g

93-11-8
236 suppliers
$14.00/5g

Yield:93-11-8 95.8%

Reaction Conditions:

with trichlorophosphate in chloroform at 90; for 9 h;Temperature;Solvent;Concentration;

Steps:

8 The method for synthesizing 2-naphthalenesulfonyl chloride with phosphorus oxychloride in the invention comprises the following steps:
1) 346 g (1.5 mol) of sodium 2-naphthalenesulfonate and 770 g (5 mol) of phosphorus oxytrichloride were successively added to 2.25 mol of chloroform to obtain a reaction solution a;2) The reaction liquid a obtained in the step 1) is reacted at a temperature of 90 ° C for 9 hours to obtain a mixed liquid b;3) the step 2) obtained by the mixture b continued to steam out the excess of phosphorus oxychloride and chloroform, followed by washing, filtration, vacuum distillation, in 2 - naphthalene sulfonyl chloride.It was calculated that the product yield of the 2-naphthalenesulfonyl chloride was 95.8%.

References:

Yingcheng Hengxin Chemical Industry Limited Company;Fan, Qingchun;Zhang, Ning;Li, Shutao CN105669498, 2016, A Location in patent:Paragraph 0067; 0068; 0069; 0070; 0071; 0072

FullText

91-60-1 Synthesis