Diastereoselective synthesis of highly functionalized tetrahydropyrans from the cyclic vinyl acetal with aldehydes mediated by lewis acid catalyst

Autor: Jae Kyun Lee, Jongho Lee, Chan-Mo Yu, Ha-Soon Choi, Wonhee Jung
Rok vydání: 1995
Předmět:
Zdroj: Tetrahedron Letters. 36:8255-8258
ISSN: 0040-4039
DOI: 10.1016/0040-4039(95)01771-9
Popis: A new method for constructing substituted tetrahydropyrans from the conjunction of 6-ethylthio-3,4-dihydro-2-methoxy-2 H -pyran with aldehydes in the presence of 10 mol % SnCl 4 is described. This reaction is highly stereocontrolled and allows various functionalities to be incorporated at tetrahydropyran ring.
Databáze: OpenAIRE