A BIS(CROWN-ETHER) ANALOG OF TROGERS BASE - RECOGNITION OF ACHIRAL AND CHIRAL PRIMARY BISAMMONIUM SALTS

Citation
Ap. Hansson et al., A BIS(CROWN-ETHER) ANALOG OF TROGERS BASE - RECOGNITION OF ACHIRAL AND CHIRAL PRIMARY BISAMMONIUM SALTS, Tetrahedron letters, 39(25), 1998, pp. 4565-4568
Citations number
32
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
ISSN journal
00404039
Volume
39
Issue
25
Year of publication
1998
Pages
4565 - 4568
Database
ISI
SICI code
0040-4039(1998)39:25<4565:ABAOTB>2.0.ZU;2-2
Abstract
A C-2-symmetric bis(18-crown-6) analogue (2) of Troger's base (1) has been synthesized. In a series of achiral primary bisammonium salts, co mpound 2 binds heptane-1,7-diylbis(ammonium chloride) most strongly. M oderate enantioselective discrimination in the complexation of L-cysti ne dimethyl ester dihydrochloride with rac-2 was observed. (C) 1998 El sevier Science Ltd. All rights reserved.