TY - JOUR
T1 - Advances towards aromatic oligoamide foldamers
T2 - synthesis and X-ray structures of dimeric arylopeptoids with conformation-directing side chains
AU - Hjelmgaard, Thomas
AU - Plesner, Malene
AU - Dissing, Mette Marie
AU - Andersen, Jeanette Marker
AU - Frydenvang, Karla Andrea
AU - Nielsen, John
PY - 2014
Y1 - 2014
N2 - We have efficiently synthesized 36 arylopeptoid dimers with ortho-, meta-, and para-substituted aromatic backbones and tert-butyl or phenyl side chains. The dimers were synthesized by using a "submonomer method" on solid phase, by applying a simplified common set of reaction conditions. X-ray crystallographic analysis of two of these dimers disclosed that the tert-butyl side chain invokes a cis amide conformation with a comparatively more closely packed structure of the surrounding aromatic backbone while the phenyl side chain results in a trans amide conformation with a more open, extended structure of the surrounding aromatic backbone. Investigation of the X-ray structures of two arylopeptoid dimers disclosed that the tert-butyl side chain invokes a cis amide conformation with a closely packed structure of the surrounding aromatic backbone while the phenyl side chain results in a trans amide conformation with a more open, extended structure of the surrounding aromatic backbone.
AB - We have efficiently synthesized 36 arylopeptoid dimers with ortho-, meta-, and para-substituted aromatic backbones and tert-butyl or phenyl side chains. The dimers were synthesized by using a "submonomer method" on solid phase, by applying a simplified common set of reaction conditions. X-ray crystallographic analysis of two of these dimers disclosed that the tert-butyl side chain invokes a cis amide conformation with a comparatively more closely packed structure of the surrounding aromatic backbone while the phenyl side chain results in a trans amide conformation with a more open, extended structure of the surrounding aromatic backbone. Investigation of the X-ray structures of two arylopeptoid dimers disclosed that the tert-butyl side chain invokes a cis amide conformation with a closely packed structure of the surrounding aromatic backbone while the phenyl side chain results in a trans amide conformation with a more open, extended structure of the surrounding aromatic backbone.
KW - Amides
KW - Foldamers
KW - Solid-phase synthesis
KW - Structure elucidation
U2 - 10.1002/ejoc.201402040
DO - 10.1002/ejoc.201402040
M3 - Journal article
AN - SCOPUS:84903287384
SN - 1434-193X
VL - 2014
SP - 3971
EP - 3975
JO - European Journal of Organic Chemistry
JF - European Journal of Organic Chemistry
IS - 19
ER -