2-(4-Bromobenzyl)-5,11,17,23-tetra-tert-butyl-25,26,27,28-tetramethoxycalix[4]arene
نویسندگان
چکیده
منابع مشابه
5,11,17,23-Tetra-tert-butyl-25,26,27,28-tetramethoxycalix[4]arene dichloromethane hemisolvate
In the title compound, C(48)H(64)O(4)·0.5CH(2)Cl(2), both crystallographically independent calixarene mol-ecules display a partial cone conformation. Their crystal packing is stabilized by C-H⋯π contacts involving the meth-oxy groups. The solvent mol-ecule is located inter-stitially between two calixarene units with C-H⋯Cl contacts to meth-oxy and tert-butyl groups. One tert-butyl residue of ea...
متن کامل2 - ( tert - Butyl ) - 4 - phenyloxetane
The two geometric isomers of 2-(tert-butyl)-4-phenyloxetane have, for the first time, been prepared starting from the commercially available 4,4-dimethyl-1-phenylpentane-1,3-dione. The latter was reduced with NaBH4 to give a mixture of diastereomeric syn and anti diols which were then stereospecifically cyclized into the corresponding oxetanes with an overall yield for the two steps of 69.6%. T...
متن کامل5,11,17,23-Tetra-tert-butyl-25,26,27,28-tetrapropynyloxy-2,8,14,20-tetrathiacalix[4]arene
THE TITLE COMPOUND [SYSTEMATIC NAME: 5,11,17,23-tetra-tert-butyl-25,26,27,28-tetra-propyn-yloxy-2,8,14,20-tetra-thia-calix[4]arene], C(52)H(56)O(4)S(4), is an alkyl-ated product bearing four propyne groups at the lower rim of a 5,11,17,23-tetra-tert-butyl-tetrathia-calix[4]arene. The mol-ecule is located on a crystallographic twofold rotation axis, running through two S atoms and perpendicular ...
متن کامل2-(4-Bromobenzyl)-5,11,17,23-tetra-tert-butyl-25,26,27,28-tetramethoxycalix[4]arene
In the title compound, C(55)H(69)BrO(4), the calixarene mol-ecule displays a 'partial cone' conformation bearing the lateral substituent in a sterically favorable equatorial arrangement between two syn-orientated arene units. The crystal packing is stabilized by weak C-H⋯π contacts, involving one tert-butyl group, and π-stacking inter-actions of the lateral bromo-benzene units [centroid-centroi...
متن کامل3,3′,5,5′-Tetra-tert-butyl-2′-hydroxy-[1,1′-biphenyl]-2-yl 4-methylbenzenesulfonate
In the title mol-ecule, C(37)H(48)O(4)S, the benzene rings in the biphenyl fragment are inclined to each other at 61.1 (1)°. The hy-droxy group is involved in a weak intra-molecular O-H⋯O(sulfonate) hydrogen bond. One tert-butyl group is disodered over two orientations in a 0.682 (17):0.318 (17) ratio. In the crystal, weak C-H⋯O hydrogen bonds link the mol-ecules into columns in direction [100].
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ژورنال
عنوان ژورنال: Acta Crystallographica Section E Structure Reports Online
سال: 2009
ISSN: 1600-5368
DOI: 10.1107/s1600536809023137