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NMR spectroscopic studies of formylmethylenetriphenylphosphoranes and their alkylation products

✍ Scribed by C.J. Devlin; B.J. Walker


Book ID
103397177
Publisher
Elsevier Science
Year
1972
Tongue
French
Weight
553 KB
Volume
28
Category
Article
ISSN
0040-4020

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πŸ“œ SIMILAR VOLUMES


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Isomer ratios, and the effect of changing solvent on these ratios, have been studied ior both ester (l)l and keto (2)2 stabilised ylids. Ester ylids exist as a mixture of cis (la) and trans (lb) isomers in CDC13, the amount of trans increasing with the bulk of R' la and/or

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## Abstract Regioselective addition of allylthiol at the C‐3 position adjacent to the nitrogen carrying the phenyl group of the 1,4‐phenylenediamine moiety of compounds **1**–**4** was rigorously confirmed by 1D NOE difference in combination with gHMBC experiments. The structures of 1,4‐phenylenedi