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Use of organomagnesium compounds to obtain sterically hindered phenols

✍ Scribed by A. A. Volod'kin; G. D. Ostapets-Sveshnikova; V. V. Ershov

Book ID
112419827
Publisher
Springer
Year
1966
Tongue
English
Weight
185 KB
Volume
15
Category
Article
ISSN
1573-9171

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Reaction of t-butyllithium with meso-tetraphenylporphyrin gives two di-tbutyl-dihydroporphyrins, the addition occuring at positions 2,3 or 5,10. 5,10-di-tbutyl-5, lO-dihydro-meso-tetraphenylporphyrin adopts a helicoidal structure as shown by its X-ray crystal structure.