Abstract
A new isomer, not previously detected, is the kinetic product of the octabromination (NBS, CH2Cl2, rt, 60 W Vis irradiation) of p-tert-butylcalix[8]arene octamethyl ether. On the basis of the signal pattern in the NMR spectrum, and the splitting of methoxy signals in the presence of a chiral solvating agent, the isolated product is assigned as one of the two possible achiral forms of Cs symmetry, where the mirror symmetry operation bisects two opposite aryl rings.
Original language | English |
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Pages (from-to) | 7-17 |
Number of pages | 11 |
Journal | Arkivoc |
Volume | 2015 |
Issue number | 3 |
DOIs | |
State | Published - 1 Nov 2014 |
Keywords
- Calixarene
- Chirality
- Configuration
- Stereochemistry
All Science Journal Classification (ASJC) codes
- Organic Chemistry