5-(Toluene-4-sulfonyloxy)-3,4-dihydro-2H-pyridine-1-carboxylic acid tert-butyl ester synthesis
- Product Name:5-(Toluene-4-sulfonyloxy)-3,4-dihydro-2H-pyridine-1-carboxylic acid tert-butyl ester
- CAS Number:1293370-51-0
- Molecular formula:C17H23NO5S
- Molecular Weight:353.43
4124-41-8
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Yield:1293370-51-0 64%
Reaction Conditions:
Stage #1: 3-oxo-piperidine-1-carboxylic acid tert-butyl esterwith sodium t-butanolate in tetrahydrofuran at -20 - 20;Inert atmosphere;
Stage #2: p-toluenesulfonylanhydride in tetrahydrofuran at -15 - -5; for 1.5 h;Inert atmosphere;
References:
Reeves, Diana C.;Rodriguez, Sonia;Lee, Heewon;Haddad, Nizar;Krishnamurthy, Dhileepkumar;Senanayake, Chris H. [Organic Letters,2011,vol. 13,# 9,p. 2495 - 2497] Location in patent:supporting information; experimental part