2-((tert-butyldimethylsilyl)oxy)-4-methyl-4a',5'-dihydro-1'H-spiro[cyclohex[3]ene-1,4'-cyclopenta[c]pyran]-6'(3'H)-one 在
sodium tetrahydroborate 、 cerium(III) chloride heptahydrate 作用下,
以
甲醇 为溶剂,
反应 0.25h,
以78%的产率得到2-((tert-butyldimethylsilyl)oxy)-4-methyl-3',4a',5',6'-tetrahydro-1'Hspiro[cyclohex[3]ene-1,4'-cyclopenta[c]pyran]-6'-ol