Methylamine → 7-Methylaminosulfonyl-1,2,3,4-tetrahydro-isoquinoline hydrochloride

참여 물질

반응 단계

Methylamine in methanol (2 M, 20 mL) was added to 2-acetyl-1,2,3,4-tetrahydro-isoquinoline-7-sulfonyl chloride (2 g). The mixture was stirred at rt for 16 h. Excess methylamine and methanol were evaporated under vacuum and hydrochloric acid (10%, 30 mL) was added to the residue. The mixture was heated at reflux for 3 h and the aqueous solution was evaporated under vacuum. The residue was trituiated with ethyl acetate (2×20 mL) to afford 7-methylaminosulfonyl-1,2,3,4-tetrahydro-isoquinoline hydrochloride (1.9 g).

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