A convenient large-scale chiral synthesis of protected 2-substituted 4-oxo-piperidine derivatives
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A convenient large-scale chiral synthesis of protected 2-substituted 4-oxo-piperidine derivatives. / Lau, Jesper F.; Kruse Hansen, Thomas; Paul Kilburn, John; Frydenvang, Karla; Holsworth, Daniel D.; Ge, Yu; Uyeda, Roy T.; Judge, Luke M.; Sune Andersen, Henrik.
In: Tetrahedron, Vol. 58, No. 36, 02.09.2002, p. 7339-7344.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - A convenient large-scale chiral synthesis of protected 2-substituted 4-oxo-piperidine derivatives
AU - Lau, Jesper F.
AU - Kruse Hansen, Thomas
AU - Paul Kilburn, John
AU - Frydenvang, Karla
AU - Holsworth, Daniel D.
AU - Ge, Yu
AU - Uyeda, Roy T.
AU - Judge, Luke M.
AU - Sune Andersen, Henrik
PY - 2002/9/2
Y1 - 2002/9/2
N2 - A convenient large-scale chiral synthesis of protected 2-substituted-4-oxo-piperidine derivatives is described. Hetero Diels-Alder reaction between trifluoroacetic acid-boron trifluoride activated (1-phenyl-ethylimino)acetic acid ethyl ester and 2-trimethylsilyloxy-1,3-butadiene gave rise to a mixture of two diastereomers of 4-oxo-1-(1-phenyl-ethyl)-piperidine-2-carboxylic acid ethyl ester. Starting from (S)-1-phenyl-ethylamine pure adduct can be obtained by crystallization of the diastereomeric mixture. Reduction of the ester group gave rise to the corresponding hydroxymethyl analogue, which was subjected to further functional group transformations to yield the desired protected 2-aminomethyl-4-oxo-piperidine derivative without any racemization being observed.
AB - A convenient large-scale chiral synthesis of protected 2-substituted-4-oxo-piperidine derivatives is described. Hetero Diels-Alder reaction between trifluoroacetic acid-boron trifluoride activated (1-phenyl-ethylimino)acetic acid ethyl ester and 2-trimethylsilyloxy-1,3-butadiene gave rise to a mixture of two diastereomers of 4-oxo-1-(1-phenyl-ethyl)-piperidine-2-carboxylic acid ethyl ester. Starting from (S)-1-phenyl-ethylamine pure adduct can be obtained by crystallization of the diastereomeric mixture. Reduction of the ester group gave rise to the corresponding hydroxymethyl analogue, which was subjected to further functional group transformations to yield the desired protected 2-aminomethyl-4-oxo-piperidine derivative without any racemization being observed.
KW - Amino acids and derivatives
KW - Diels-Alder reactions
KW - Piperidinones
UR - http://www.scopus.com/inward/record.url?scp=0037008913&partnerID=8YFLogxK
U2 - 10.1016/S0040-4020(02)00682-8
DO - 10.1016/S0040-4020(02)00682-8
M3 - Journal article
AN - SCOPUS:0037008913
VL - 58
SP - 7339
EP - 7344
JO - Tetrahedron
JF - Tetrahedron
SN - 0040-4020
IS - 36
ER -
ID: 382746837