๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Preparation of homochiral azophenolic crown ethers containing 1-phenylethane-1,2-diol and 2,4-dimethyl-3-oxapentane-1,5-diol as a chiral subunit: Enantiomer recognition behaviour towards chiral 2-aminoethanol derivatives

โœ Scribed by Koichiro Naemura; Kazuko Ogasahara; Keiji Hirose; Yoshito Tobe

Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
256 KB
Volume
8
Category
Article
ISSN
0957-4166

No coin nor oath required. For personal study only.

โœฆ Synopsis

Enantiomerically pure azophenolic crown ethers 1--4 containing (S)-or (R)l-phenylethane-l,2-diol moieties and (2S,4S)-2,4-dimethyl-3-oxapentane-l,5-diol moiety as a chiral subunit were prepared; crown ethers (S,S,S,S)-I showed high chiral recognition behaviour in complexation with 2-substituted 2-aminoethanol derivatives.

๐Ÿ“œ SIMILAR VOLUMES

ChemInform Abstract: Preparation of Homo
ChemInform Abstract: Preparation of Homochiral Azophenolic Crown Ethers Containing 1- Phenylethane-1,2-diol and 2,4,-Dimethyl-3-oxapentane-1,5-diol as a Chiral Subunit: Enantiomer Recognition Behavior Towards Chiral 2- Aminoethanol Derivatives.
โœ K. NAEMURA; K. OGASAHARA; K. HIROSE; Y. TOBE ๐Ÿ“‚ Article ๐Ÿ“… 2010 ๐Ÿ› John Wiley and Sons โš– 33 KB ๐Ÿ‘ 3 views

Preparation of Homochiral Azophenolic Crown Ethers Containing 1-Phenylethane-1,2-diol and 2,4,-Dimethyl-3-oxapentane-1,5-diol as a Chiral Subunit: Enantiomer Recognition Behavior Towards Chiral 2-Aminoethanol Derivatives. -The enantiomerically pure crown ethers (VII)-(X) are synthesized. Ether (VII

Preparation of homochiral phenolic crown
Preparation of homochiral phenolic crown ethers containing para-substituted phenol moiety and chiral subunits derived from (S)-1-phenylethane-1,2-diol: their chiral recognition behaviour in complexation with neutral amines
โœ Koichiro Naemura; Yasushi Nishikawa; Junichi Fuji; Keiji Hirose; Yoshito Tobe ๐Ÿ“‚ Article ๐Ÿ“… 1997 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 638 KB

Crown ethers 1--6 containing two chiral subunits derived from (S)-Iphenylethane-l,2-diol and a phenol moiety bearing an intra-annular OH group and an additional para-substituent have been prepared in enantiomerically pure forms and their enantiomer recognition behaviour in complexation with neutral

Preparation of homochiral crown ether co
Preparation of homochiral crown ether containing (S)-1-(1-adamantyl)ethane-1,2-diol as a chiral subunit and its enantioselective complexation with an organic ammonium cation
โœ Koichiro Naemura; Takashi Mizo-oku; Kimiko Kamada; Keiji Hirose; Yoshito Tobe; M ๐Ÿ“‚ Article ๐Ÿ“… 1994 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 654 KB

Homochiral l-(l-adamantyl)ethane-l,Zdiol(5) was prepared and 1t.s absolute configuration was determined to be (q-(+)-5 by enzymatic and 'H n.m.r. spectroscopic methods. Using (s)-(+)-5 as a chual subunit, the homochiral crown ether (+)-18 was K. NAEMURA et al. (23% yield), [a], +37.1 (acetone), mp 1