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Spectral studies on coumarins and the determination of the constitution of ekersenin by total synthesis

✍ Scribed by J.I. Okogun; V.U. Enyenihi; D.E.U. Ekong


Publisher
Elsevier Science
Year
1978
Tongue
French
Weight
449 KB
Volume
34
Category
Article
ISSN
0040-4020

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one obtains the electronegativity XNSF, = 3.3. If one plots the mean P F frequency of the phosphoryl halides against the sum of the electronegativities, one obtains a linear dependence, whence the electronegativity of the NSF2 group again appears as 3.3. Compound (4) IS a clear liquid of b.p. 7 2 Β°C