IT1051443B - Processo per la preparazione di 2 alchilsolfinil 6 nitrobenzotiazoli
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Processo per la preparazione di 2 alchilsolfinil 6 nitrobenzotiazoli
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IT1051443B
IT1051443BIT2427975AIT2427975AIT1051443BIT 1051443 BIT1051443 BIT 1051443BIT 2427975 AIT2427975 AIT 2427975AIT 2427975 AIT2427975 AIT 2427975AIT 1051443 BIT1051443 BIT 1051443B
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Priority to IT2427975ApriorityCriticalpatent/IT1051443B/it
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2-Alkylsulphinyl-6-nitrobenzothiazoles produced in high yield - by nitration of 2-alkylmercaptobenzothiazoles with excess nitric acid in conc. sulphuric acid, then oxidn
Cycloalkanone-helveticoside prepn - by reaction of cycloalkanone and helveticoside with a dessicant, in a polar solvent in presence of aromatic sulphonic acid monohydrate
Soluzioni concentrate,stabili alla conservazione,di componenti di copulazione per la tintura con i coloranti al ghiaccio,loro preparazione e loro impiego