Synthesis and characterization of p-tert-butylcalix[6]-1,4-crown-4-2,6-crown-5, p-tert-butylcalix[6]-1,4-benzocrown-4-2,3-crown-5

Authors
Chen, YY Li, HB
Citation
Yy. Chen et Hb. Li, Synthesis and characterization of p-tert-butylcalix[6]-1,4-crown-4-2,6-crown-5, p-tert-butylcalix[6]-1,4-benzocrown-4-2,3-crown-5, CHEM LETT, (10), 2000, pp. 1208-1209
Citations number
16
Categorie Soggetti
Chemistry
Journal title
CHEMISTRY LETTERS
ISSN journal
03667022 → ACNP
Issue
10
Year of publication
2000
Pages
1208 - 1209
Database
ISI
SICI code
0366-7022(20001005):10<1208:SACOP>2.0.ZU;2-3
Abstract
Two new types of calix[6]-bis-crowns, p-tert-butylcalix[6]-1,4-crown-4-2,6- crown-5 and p-tert-butylcalix[6]-1,4-benzocrown-4-2,3-crown-5, have been sy nthesized and characterized. The conformation of p-tert-butylcalix[6]-1,4-c rown-4-2,6-crown-5 may be (u,d,d,u,d,d) or (u,d,u,u,u,d), and can not be fu rther assigned, the latter adopts (u,u,u,u,u,u) conformation at room temper ature.