TY - JOUR
T1 - A highly selective hydrogen‐deuterium exchange in indolium heptamethine cyanines
AU - Lipowska, Malgorzata
AU - Patterson, Steven
AU - Patonay, Gabor
AU - Strekowski, Lucjan
PY - 1993
Y1 - 1993
N2 - Chemical shift assignments in 1H nmr spectra of four tricarbocyanines have been made. Studies by 1H nmr have shown a rapid acid‐catalyzed proton exchange at positions 1′,7′ and a much slower exchange at positions 3′,5′ of the heptamethine chain. Base catalysis results in a slow exchange at positions 1′,7′ only.
AB - Chemical shift assignments in 1H nmr spectra of four tricarbocyanines have been made. Studies by 1H nmr have shown a rapid acid‐catalyzed proton exchange at positions 1′,7′ and a much slower exchange at positions 3′,5′ of the heptamethine chain. Base catalysis results in a slow exchange at positions 1′,7′ only.
UR - http://www.scopus.com/inward/record.url?scp=2042442807&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=2042442807&partnerID=8YFLogxK
U2 - 10.1002/jhet.5570300503
DO - 10.1002/jhet.5570300503
M3 - Article
AN - SCOPUS:2042442807
SN - 0022-152X
VL - 30
SP - 1177
EP - 1180
JO - Journal of Heterocyclic Chemistry
JF - Journal of Heterocyclic Chemistry
IS - 5
ER -