کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
50779 | 46813 | 2012 | 4 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Organocatalyst trityl chloride efficiently promoted the solvent-free synthesis of 12-aryl-8,9,10,12-tetrahydrobenzo[a]-xanthen-11-ones by in situ formation of carbocationic system in neutral media Organocatalyst trityl chloride efficiently promoted the solvent-free synthesis of 12-aryl-8,9,10,12-tetrahydrobenzo[a]-xanthen-11-ones by in situ formation of carbocationic system in neutral media](/preview/png/50779.png)
A highly efficient and novel procedure for the preparation of 12-aryl-8,9,10,12-tetrahydrobenzo[a]-xanthen-11-one derivatives via the one-pot three-component condensation of 2-naphthol with arylaldehydes and dimedone in the presence of catalytic amount of trityl chloride (TrCl) as a homogeneous organocatalyst under natural and solvent-free conditions is described. It is interesting that TrCl by in situ formation of trityl carbocation with inherent instability catalyzes the reaction.
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► Introducing an efficient method for synthesis of xanthene derivatives.
► The use of trityl chloride as a non-acidic and homogeneous organocatalyst.
► In situ formation of carbocationic system in neutral media to catalyze reaction.
► Application of solvent-free conditions in reaction.
Journal: Catalysis Communications - Volume 20, 5 April 2012, Pages 54–57