tert-butyl [5′-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2′,3′-dihydro-4H-spiro[cyclohexane-1,1′-inden]-4-ylidene]acetate 在
palladium 10% on activated carbon
氢气 作用下,
以
四氢呋喃 为溶剂,
以42.1%的产率得到tert-butyl 2-((1r,4s)-5'-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2',3'-dihydrospiro[cyclohexane-1,1'-indene]-4-yl)acetate