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Name: 6-amidino-2-naphthol methanesulfonate

CAS NO: 82957-06-0

Purity: 99% min

MF: C12H14N2O4S

MW:282.316

叠笔:142-149&苍产蝉辫;°颁(濒颈迟.)

Density:0.876 g/mL at 25 °C(lit.)

惭笔:&苍产蝉辫;?100&苍产蝉辫;°颁(濒颈迟.)

EINECS:N/A

Appearance: White powder

Package: 25g, 100g, 500g, bulk package

Application:Organic Intermediate

Other name:

6-Hydroxy-2-naphthimidamide methanesulfonate salt;

6-(diaminomethylidene)naphthalen-2-one,methanesulfonic acid;

6-Hydroxynaphthalene-2-carboximidamide methanesulfonate (1:1);

6-Hydroxy-2-naphthalenecarboximidamide methanesulfonate (1:1);

2-Naphthalenecarboximidamide, 6-hydroxy-, methanesulfonate (1:1) (salt);

6-amidino-2-naphthol methanesulfonate synthesis method CAS NO: 82957-06-0

According to the new method, 6-hydroxy-2-naphthaldehyde is adopted as a raw material, dimethyl sulfoxide is adopted as a reaction solvent, the dimethyl sulfoxide and hydroxylamine hydrochloride are subjected to an addition elimination reaction to obtain 6-cyano-2-naphthol, the 6-cyano-2-naphthol is subjected to a pinner reaction in a HCl/methanol solution to obtain 6-hydroxy-2-naphthalene imino methyl ester hydrochloride, ammonia gas is introduced to carry out an aminolysis reaction to obtain 6-amidino-2-naphthol, and the 6-amidino-2-naphthol sequentially reacts with sodium bicarbonate and methanesulfonic acid to convert into the 6-amidino-2-naphthol methanesulfonate. According to the present invention, in the new synthesis method, the 6-cyano-2-naphthol preparation in the first step adopts the completely-new method, the use of the highly toxic copper cyanide in the traditional method is avoided, the operations are simple, and the conditions are mild; and the second step adopts the improved pinner method, wherein the reaction of acetyl chloride and methanol is adopted to produce HCl to replace direct introduction of HCl gas into the reaction system, such that the improved method has strong operability and industrialization is easily achieved.

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