(Triphenylphosphoranylidene)ketene
(Triphenylphosphoranylidene)ketene ??
???
167-173 °C
?? ?
455.4±38.0 °C(Predicted)
??
1.12±0.1 g/cm3(Predicted)
??? ??
solid
InChI
1S/C20H15OP/c21-16-17-22(18-10-4-1-5-11-18,19-12-6-2-7-13-19)20-14-8-3-9-15-20/h1-15H
InChIKey
MNASRBWCHRURHY-UHFFFAOYSA-N
SMILES
O=C=C=P(c1ccccc1)(c2ccccc2)c3ccccc3
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?? ? ???? ?? (GHS)
WGK ??
3
HS ??
2931.90.6000
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11 - Combustible Solids
????(GHS):
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Warning
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P- ??
H302 ??? ???
?? ?? ?? - ??
?? 4
??
P264, P270, P301+P312, P330, P501
H315 ??? ??? ???
????? ?? ?????
?? 2
??
P264, P280, P302+P352, P321,P332+P313, P362
H319 ?? ?? ??? ???
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?? 2A
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P264, P280, P305+P351+P338,P337+P313P
H335 ?? ???? ??? ? ??
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?? 3
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P231+P232 ??? ?? ??? ????, ??? ?????.
P234 ??? ???? ?????.
P261 ??·?·??·???·??·...·????? ??? ????.
P302+P352 ??? ??? ??? ?? ????.
P304+P340 ???? ??? ??? ?? ??? ??? ???? ?? ??? ??? ????.
P305+P351+P338 ?? ??? ? ?? ?? ???? ????. ???? ?????? ?????. ?? ????.
NFPA 704
(Triphenylphosphoranylidene)ketene C??? ??, ??, ??
??
A nucleophilic two-carbon building block that participates in a variety of reactions including cycloaddition, multi-component, and domino reactions.
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(Triphenylphosphoranylidene)ketene (Ketenylidenetriphenylphosphorane) is prepared most conveniently by a β-elimination from
(Methoxycarbonylmethylene)triphenylphosphorane using Sodium Hexamethyldisilazide or Sodium
Amide as a base (eq 1).
(Triphenylphosphoranylidene)ketene ?? ?? ? ???
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(Triphenylphosphoranylidene)ketene ?? ??
???( 47)?? ??
China 37
France 1
Germany 1
India 1
Japan 1
Switzerland 1
United States 5
Global 47
(Triphenylphosphoranylidene)ketene ?? ??:
