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How Strong and How Hindered Can Uncharged Phosphazene Bases Be?
Author(s) -
Schwesinger Reinhard,
Hasenfratz Christian,
Schlemper Helmut,
Walz Leonhard,
Peters EvaMaria,
Peters Karl,
von Schnering Hans Georg
Publication year - 1993
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199313611
Subject(s) - phosphazene , triethylamine , base (topology) , chemistry , moisture , polymer chemistry , organic chemistry , polymer , mathematics , mathematical analysis
Unequivocal answers to the questions in the title are not possible yet, but the strongest stable uncharged base, the P S compound 1 , is 28‐29 p K units more basic than triethylamine. Compound 1 is easily prepared, readily soluble, and can be stored almost indefinitely at room temperature in the absence of moisture.