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79815-19-3

1,2,3,4-tetrahydro-isoquinoline-3-carboxylic acid methyl ester synthesis

8synthesis methods
2-(tert-butyl) 3-methyl (S)-3,4-dihydroisoquinoline-2,3(1H)-dicarboxylate

252008-94-9
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1,2,3,4-tetrahydro-isoquinoline-3-carboxylic acid methyl ester

79815-19-3
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Yield:79815-19-3 100%

Reaction Conditions:

Stage #1: methyl (3S)-2-(tert-butoxycarbonyl)-1,2,3,4-tetrahydro-3-isoquinolinecarboxylatewith trifluoroacetic acid in dichloromethane at 20; for 1 h;
Stage #2: with N-ethyl-N,N-diisopropylamine in dichloromethane at 20; for 0.25 h;

References:

Charton, Julie;Delarue, Sandrine;Vendeville, Sandrine;Debreu-Fontaine, Marie-Ange;Girault-Mizzi, Sophie;Sergheraert, Christian [Tetrahedron Letters,2001,vol. 42,# 43,p. 7559 - 7561]