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Reaction of 5,6-Dihydroxy-2,2,9,9-tetramethyl-4,6-decadiene-3,8-dione witho-Aminophenol ando-Aminothiophenol

โœ Scribed by V. O. Kozminykh; N. M. Igidov; E. N. Kozminykh

Book ID
111545165
Publisher
Springer US
Year
2003
Tongue
English
Weight
108 KB
Volume
39
Category
Article
ISSN
0009-3122

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๐Ÿ“œ SIMILAR VOLUMES

9-(4-Bromophenyl)-3,3,6,6-tetramethyl-3,
9-(4-Bromophenyl)-3,3,6,6-tetramethyl-3,4,6,7-tetrahydro-2H-xanthene-1,8(5H,9H)-dione
โœ Bigdeli, M. Ali ;Mahdavinia, Gholam Hossein ;Amani, Vahid ๐Ÿ“‚ Article ๐Ÿ“… 2007 ๐Ÿ› International Union of Crystallography ๐ŸŒ English โš– 646 KB

The title compound, C 23 H 25 BrO 3 , was synthesized by the reaction of p-bromobenzaldehyde with dimedone and HClO 4 / SiO 2 in EtOH. In the molecule, the dihydropyran ring adopts a boat conformation and the two cyclohexene rings are in a trans conformation.

4,4,6,8-Tetramethyl-2-tosylpyrrolo[3,4-c
4,4,6,8-Tetramethyl-2-tosylpyrrolo[3,4-c]pyrano[6,5-b]pyrimidine-7,9-dione
โœ Chinnakali, K. ;Jayagopi, M. ;Sudha, D. ;Raghunathan, R. ;Fun, Hoong-Kun ๐Ÿ“‚ Article ๐Ÿ“… 2007 ๐Ÿ› International Union of Crystallography ๐ŸŒ English โš– 1013 KB

In the title compound, C~20~H~25~N~3~O~5~S, the pyrrolidine ring is __trans__-fused to the dihydropyran ring. The pyrrolidine ring adopts a twist conformation and the dihydropyran ring is in an envelope conformation. The tosyl group is attached to the pyrrolidine ring in a biaxial position and its b