1,2,3,4-Tetrahydroisoquinoline → (S)-2-(oxiran-2-ylmethyl)-1,2,3,4-tetrahydroisoquinoline

To a solution of 1,2,3,4-tetrahydroisoquinoline (5 g, 7.52 mmol) in THF (100 mL) was added KF (8.57 g, 150.4 mmol) at 0° C. (R)-oxiran-2-ylmethyl 3-nitrobenzenesulfonate (10.7 g, 41.4 mmol) was added to the reaction in 1 h. The solution was stirred at room temperature overnight. The solid was removed by filtration and washed with THF. The solution was then concentrated and the residue used for next step without further purification (11.3 g Yield 80%). LCMS (m/z): 190.1 (M+1).

1. additionwas added to the reaction in 1 h
2. customThe solid was removed by filtration
3. washwashed with THF
4. concentrationThe solution was then concentrated
5. customthe residue used for next step without further purification (11.3 g Yield 80%)

ORD-Eintrag

ord-cecfdf763f6d42faa456fbf3dc9c0fbf

Quelldatensatz

uspto-grants-2016_06

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US09365519B2