Electric Literature of 5631-96-9. Let¡¯s face it, organic chemistry can seem difficult to learn. Especially from a beginner¡¯s point of view. Like 5631-96-9, Name is 2-(2-Chloroethoxy)tetrahydro-2H-pyran. In a document type is Article, introducing its new discovery.
BiCl3: A versatile catalyst for the tetrahydropyranylation and depyranylation of 1,2,3, allylic, benzylic alcohols, and symmetric diols
Bismuth trichloride as mild reagent, has been found to be a worthful catalyst for tetrahydropyranylation of 1,2,3, allylic, benzylic alcohols, and symmetric di-ols. At room temperature the reagent THP(3,4-dihydro-2H-pyran) was successfully employed as pyranylating agent in presence of BiCl3catalyst without the use of a solvent and the yields of the products were found to be 90-96%. Further, the depyranylation of alcohols was achieved in quantitative yield by simple addition of MeOH using the same catalyst. The developed method was showed good chemo-selectivity in symmetrical diols for mono THP protection.
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Reference£º
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics