-
exact carbenic nature. In 1991,
Arduengo and
coworkers crystallized a
diaminocarbene by
deprotonation of an
imidazolium cation: This carbene, the forerunner...
-
Wanzlick reported that
tetraaminoethylene 1
readily dissociates into
diaminocarbene halves, and a long
series of
papers from his
group followed, describing...
-
monomer "A" is said to
dimerize to give the
dimer "A−A". An
example is a
diaminocarbene,
which dimerize to give a tetraaminoethylene: 2 C ( NR 2 ) 2 ⟶ ( R 2...
-
phosphonium salts to form
Wittig reagents, and
formamidinium salts to form
diaminocarbenes. It is also a
potent nucleophile. In
organic synthesis, DMSO is used...
- Bertrand, G. (2010). "Stable
cyclic carbenes and
related species beyond diaminocarbenes". Angew. Chem. Int. Ed. 49 (47): 8810–8849. doi:10.1002/anie.201000165...
- PMID 19900893.
Arduengo AJ,
Goerlich JR,
Marshall WJ (2002-05-01). "A
stable diaminocarbene". J. Am. Chem. Soc. 117 (44): 11027–11028. doi:10.1021/ja00149a034....
-
Tetraaminoethylenes are
important in
organic chemistry as
dimers of
diaminocarbenes, a type of
stable carbene with the
general formula (R2N)2C:. Tetraaminoethylenes...
- analogues. P-substituted
heavier group 14
analogues (Si, Ge, Sn, Pb) of
diaminocarbenes are less established. It has been
suggested this is due to a high energetic...
-
confirmed in 2010 by Kirmse.
Others subsequently showed that
unhindered diaminocarbenes form
dimers by acid-catalysed
dimerisation as
shown in the Lemal. Sublimation...
- ; Harvey, J. N.; Paolini, F.; Schütz, J. (2004). "When and How Do
Diaminocarbenes Dimerize?".
Angewandte Chemie International Edition. 43 (44): 5896–5911...
