Inclusion compounds with a sexipedal host. Crystal structures and thermal analysis of inclusion compounds of hexakis(3-hydroxy-3,3-diphenylprop-2-ynyl)benzene with methyl ethyl ketone, diethyl ketone and diethyl ether

Author(s):  
Susan A. Bourne ◽  
Katherine L. Gifford Nash ◽  
Fumio Toda
2010 ◽  
Vol 642 (1-3) ◽  
pp. 66-71 ◽  
Author(s):  
Nobuyoshi Hasebe ◽  
Kohji Abe ◽  
Eriko Sugiyama ◽  
Rie Hosoi ◽  
Osamu Inoue

1966 ◽  
Vol 11 (3) ◽  
pp. 331-333 ◽  
Author(s):  
W. J. Privott ◽  
D. R. Paul ◽  
K. R. Jolls ◽  
E. M. Schoenborn

1999 ◽  
Vol 54 (4) ◽  
pp. 501-514
Author(s):  
Hans Bock ◽  
Norbert Nagel ◽  
Peter Eller

Based on preceeding investigations on the crystallization and structures of 13 inclusion compounds with a variety of guest molecules in the host matrix of N,N′-Ditosyl-p-phenylenediamine, the crystal structures of N,N′-Di(4-nitro-benzosulfuryl)-p-phenylenediamine and the five hydrogen bond acceptor molecules cyclopentanone, cyclohexanone, tetrahydrofurane, N,N-dimethylformamide, and pyridine are reported and discussed. In all of the host/guest aggregates formed, the planes of the (4-nitro)phenyl substituents are more strongly twisted out of the p-phenylene plane than in the guest-free host crystal structure, substantiating the importance of optimum conformation of the sulfonamide backbone. The dominant interactions, however, are the hydrogen bonds from the donor host to the acceptor guest, which prevent the usual formation of (sulfonamide···sulfonamide) hydrogen bond motifs in the host lattice. A pecularity is found in the 4:1 stochiometry of the pyridine inclusion compound of N,N′-di(4-nitro-benzosulfuryl)-p-phenylenediamine.


1947 ◽  
Vol 25b (1) ◽  
pp. 70-79 ◽  
Author(s):  
A. C. Neish ◽  
F. J. Macdonald

Optically active 4,5-dimethyl-1,3-dioxacyclopentane derivatives can be easily obtained by condensing levo-2,3-butanediol with aldehydes or ketones in the presence of small amounts of strong acids at ordinary temperatures. Condensations were effected with formaldehyde, acetaldehyde, propionaldehyde, butyraldehyde, isobutyraldehyde, 2-ethylbutyraldehyde, 2-ethylhexaldehyde, benzaldehyde, furfural, acrolein, acetone, methyl ethyl ketone, methyl isobutyl ketone, methyl amyl ketone, diethyl ketone, acetophenone, cyclohexanone, acetoin, and diacetyl. The expected products were obtained, two compounds being formed from diacetyl since one or both carbonyl groups may react. Two compounds were obtained from formaldehyde also; in addition to the expected product (levo-4,5-dimethyl-1,3-dioxacyclopentane), 15 to 20% of levo-6,7-dimethyl-1,3,5-trioxacycloheptane was obtained.


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