3,4-dihydro-2,2-dimethyl-4-(isopropylthio)-2H-1-benzopyran

2-(1-(isopropylthio)-3-methylbut-3-en-1-yl)phenol

magnesium,carbanide,iodide

邻溴苯酚

4-bromo-2,2-dimethyl-2H-1-benzopyran