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For the first time,metal hydrogen sulfates and phosphates/silica gel have been studied as efficient and powerful solid acid catalysts in the ring opening of epoxides with thiocyanate anion.The most significant result was obtained by Al(HSO_4)_3/SiO_2 which afforded the corresponding β-hydroxy thiocyanates under mild reaction conditions and in very short reaction times.The cheapness, availability of the catalyst,ease of procedure and work-up make this method attractive for the organic synthesis.
For the first time, metal hydrogen sulfates and phosphates / silica gel have been studied as efficient and powerful solid acid catalysts in the ring opening of epoxides with thiocyanate anion. The most significant result was obtained by Al (HSO 4) _3 / SiO_2 which afforded the corresponding β-hydroxy thiocyanates under mild reaction conditions and in very short reaction times. the cheapness, availability of the catalyst, ease of procedure and work-up make this method attractive for the organic synthesis.