1980
DOI: 10.1002/jhrc.1240030911
|View full text |Cite
|
Sign up to set email alerts
|

GC behaviour of N(O,S)‐perfluoroacyl D,L‐amino acid alkyl esters on chirasil‐val stationary phase

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2

Citation Types

0
2
0

Year Published

1981
1981
2011
2011

Publication Types

Select...
6

Relationship

0
6

Authors

Journals

citations
Cited by 15 publications
(2 citation statements)
references
References 4 publications
0
2
0
Order By: Relevance
“…One of the inventors of Chirasil-Val 4 used N-TFA-O-n-propyl esters but switched later to N-TFA-O-ethyl esters of ␣-amino acids [38] as commercially available trifluoroacetic acid is significantly cheaper and purer than pentafluoropropionic acid. The resolution factors R s of eight representative ␣-amino acid derivatives as a function of the N-perfluoroacyl group (i.e., trifluoroacetyl (TFA), pentafluoropropionyl (PFP) and heptafluorobutyryl (HFB)) and ester alkyl group (i.e., n-propyl, 2-propyl, 2-butyl and isoamyl) on ChirasilVal 4 have been determined [208]. Enantioselectivity decreases with increasing size of the substituting groups which is more pronounced for the perfluoroacyl group [208][209][210] as compared to the alkyl group [208].…”
Section: Derivatization Strategiesmentioning
confidence: 99%
See 1 more Smart Citation
“…One of the inventors of Chirasil-Val 4 used N-TFA-O-n-propyl esters but switched later to N-TFA-O-ethyl esters of ␣-amino acids [38] as commercially available trifluoroacetic acid is significantly cheaper and purer than pentafluoropropionic acid. The resolution factors R s of eight representative ␣-amino acid derivatives as a function of the N-perfluoroacyl group (i.e., trifluoroacetyl (TFA), pentafluoropropionyl (PFP) and heptafluorobutyryl (HFB)) and ester alkyl group (i.e., n-propyl, 2-propyl, 2-butyl and isoamyl) on ChirasilVal 4 have been determined [208]. Enantioselectivity decreases with increasing size of the substituting groups which is more pronounced for the perfluoroacyl group [208][209][210] as compared to the alkyl group [208].…”
Section: Derivatization Strategiesmentioning
confidence: 99%
“…The resolution factors R s of eight representative ␣-amino acid derivatives as a function of the N-perfluoroacyl group (i.e., trifluoroacetyl (TFA), pentafluoropropionyl (PFP) and heptafluorobutyryl (HFB)) and ester alkyl group (i.e., n-propyl, 2-propyl, 2-butyl and isoamyl) on ChirasilVal 4 have been determined [208]. Enantioselectivity decreases with increasing size of the substituting groups which is more pronounced for the perfluoroacyl group [208][209][210] as compared to the alkyl group [208]. As expected, TFA-derivatives of ␣-amino acids exhibit lower retention times [210].…”
Section: Derivatization Strategiesmentioning
confidence: 99%