Substance
ID:715122
Names and Identifiers
IUPAC name
2-(triphenyl-λ5-phosphanylidene)acetaldehyde
IUPAC Traditional name
2-(triphenyl-λ5-phosphanylidene)acetaldehyde
Synonyms
(Triphenylphosphoranylidene)acetaldehyde(Formylmethylene)triphenylphosphorane(甲酰基亚甲基)三苯基磷烷
Registration numbers
CAS Number
Beilstein Number
EC Number
MDL Number
Properties
Safety Information
GHS Pictograms
Acute toxicity (oral, dermal, inhalation), category 4
Skin irritation, category 2
Eye irritation, category 2
Skin sensitisation, category 1
Specific Target Organ Toxicity – Single exposure, category 3
European Hazard Symbols
Irritant (Xi)GHS Precautionary statements
P261-P305+P351+P338-P302+P352-P321-P405-P501A
Risk Statements
36/37/38
Safety Statements
26-37
Storage Warning
Air Sensitive
GHS Hazard statements
H315-H319-H335
TSCA Listed
否
Product Information
Purity
97%, may cont. up to ca 3% water
Physical Property
Melting Point
183-188°C
Molecule Details
No Data Available
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Molecular Spectra
No Data Available
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References
• Stable ylide, which undergoes Wittig olefination with aldehydes, but not usually with ketones, to give enals: J. Chem. Soc., 1266 (1961); Angew. Chem. Int. Ed., 14, 486 (1975); Tetrahedron Lett., 3071 (1977). See Appendix 1. Reaction with aldehydes generally gives the thermodynamically more stable (E)-enal. Thus glyoxal gives trans,trans-muconic dialdehyde [(E),(E)-2,4-hexadienal]: Chem. Ber., 107, 710 (1974). The following sequence leads to (Z)-enals: Chem. Ber., 115, 161 (1982):
• Wittig reaction followed by reduction with DIBAL-H has been used as a route to allylic alcohols. See, e.g.: J. Org. Chem., 47, 1373 (1982).