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Synthesis and Structure of a 1λ 5 ,4λ 5 ‐Diphosphapentalene
Author(s) -
Silberzahn Jürgen,
Pritzkow Hans,
Latscha Hans Peter
Publication year - 1990
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.199007991
Subject(s) - yield (engineering) , decomposition , ylide , dimethyl acetylenedicarboxylate , chemistry , physics , medicinal chemistry , organic chemistry , cycloaddition , catalysis , thermodynamics
The diphosphapentalene 3 melts at 194°C without decomposition . Compound 3 is formed in 71% yield by reaction of two equivalents of dimethyl acetylenedicarboxylate ( 1 ) with 2 . The surprising stability of 3 is due to ylide structures.