Hydrochloric Acid → Ethyl 1'-amino-6'-bromo-4-methoxy-1',3'-dihydrospiro[cyclohexane-1,2'-indene]-1'-carboxylate

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Reaction Steps

To a solution of ethyl 6′-bromo-1′-(1,1-dimethylethylsulfinamido)-4-methoxy-1′,3′-dihydrospiro[cyclohexane-1,2′-indene]-1′-carboxylate (6) (62.8 mg, 0.129 mmol) in MeOH (5 mL) was added a 4 M HCl solution in dioxane (2 mL). The resulting mixture was stirred for 30 min. Solvent was removed under reduced pressure, and the residue 7 was used for next step without further purification. MS ESI+ve m/z 382 (M+H)+.

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