SYNTHESIS OF NOVEL 2'-ARYL-4'-HYDROXY-4',5,5',6-TETRAHYDRO-2'<i>H</i>,8<i>H</i>-SPIRO[INDOLIZINE-7,3'-THIOPHEN]-8-ONE DERIVATIVES <i>via</i> SULFA-MICHAEL/ALDOL CASCADE REACTIONS
DOI:
https://doi.org/10.1007/5312Keywords:
1, 4-dithiane-2, 5-diol, 6, 7-dihydroindolizin-8(5H)-one, sulfa-Michael/aldol cascade reaction, spiro heterocycleAbstract
The sulfa-Michael/aldol cascade reaction of (E)-7-arylidene-6,7-dihydroindolizin-8(5H)-ones and 1,4-dithiane-2,5-diol afforded novel
2'-aryl-4'-hydroxy-4',5,5',6-tetrahydro-2'H,8H-spiro[indolizine-7,3'-thiophen]-8-ones in low to moderate yields. The structures of all products were characterized thoroughly by NMR, IR, HRMS, together with X-ray crystallographic analysis.
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Published
2020-01-31
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Original Papers