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α,α-Doubly Deprotonated Nitroalkanes. Enhancement of the C-Nucleophilicity of Nitronates

✍ Scribed by Prof. Dr. Dieter Seebach; Dipl.-Chem. Friedrich Lehr

Publisher
John Wiley and Sons
Year
1976
Tongue
English
Weight
205 KB
Volume
15
Category
Article
ISSN
0044-8249

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✦ Synopsis

C l -P -c 5 : 106rb" C 3 -C 6 -C 9 ! 111.6' Compound (1 ) crystallizes in the orthorho@k space group P212121 witha=18.655,b=15.550, c=8.529A,Z=4; complex ( 2 ) crystallizes in the monocliaic space group P21/a with a=15.092, b=12.442, c=13.119A, p=l15.0S', Z = 4 . The reflections of the two crystals were recorded on an automatic Philips four-circle diffractometer (Mo-Krx radiation). The two structures were solved by direct methods (MULTANC'I). Refinement with anisotropic temperature factors led to a final value of R = 11.4 % and 5.9 % respectively. All the results of importance are to be seen in the two Figures (distances given in A).

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