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ETHYL23-????????95

ETHYL23-????????95
ETHYL23-????????95 ??? ???
?? ??:
14369-81-4
???:
ETHYL23-????????95
???(??):
ETHYL23-????????95
???:
ETHYL 2 3-BUTADIENOATE 95
???(??):
2,3-Butadienoate;ethyl buta-2,3-dienoate;Ethyl2,3-Butadienoate>ETHYL 2,3-BUTADIENOATE 95%;ETHYL 2 3-BUTADIENOATE 95;2,3-Butadienoic Acid Ethyl Ester
CBNumber:
CB4499448
???:
C6H8O2
??? ??:
112.13
MOL ??:
14369-81-4.mol
MSDS ??:
SDS

ETHYL23-????????95 ??

?? ?
80 °C60 mm Hg(lit.)
??
0.966 g/mL at 25 °C(lit.)
???
n20/D 1.46(lit.)
???
116 °F
?? ??
<0°C
??? ??
??? ??
??
??~???
?? ??(λmax)
209nm(MeOH)(lit.)
??
  • ?? ? ?? ??
  • ?? ? ???? ?? (GHS)
?? ???? ?? 10
????(UN No.) UN 1993 3/PG 2
WGK ?? 3
?? ?? 3
???? III
HS ?? 29161900
????(GHS): GHS hazard pictograms
?? ?: Warning
??·?? ??:
?? ??·?? ?? ?? ?? ?? ?? ? ?? ?? P- ??
H226 ??? ?? ? ?? ??? ?? ?? 3 ??
??????:
P210 ?·???·??·????? ????? - ?? ???.
P233 ??? ??? ?????. ??? ??? ? ?? ?? ??? ???? ?????.
P240 ??? ????? ?? ? ??????.
P241 ?? ??? ??[???/??/??/...]?(?) ?????.
P242 ???? ???? ?? ??? ?????
P243 ??? ?? ??? ????.
NFPA 704
2
0 0

ETHYL23-????????95 C??? ??, ??, ??

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Ethyl Buta-2,3-dienoate is a useful reactant for the synthesis of 9H-?pyrrolo[1,?2-?a]?indole derivatives via a phosphine-?promoted Michael addn.?/intramol. Wittig reaction.

?? ??

Ethyl 2,3-butadienoate is an α-allenic ester. The reaction of ethyl 2,3-butadienoate with N-tosylated imines in the presence of DABCO (1,4-diazabicyclo[2.2.2]octane) or DMAP (4-dimethylaminopyridine) forms azetidine derivatives or novel dihydropyridine derivatives respectively. The performance of bifunctional N-acyl aminophosphines to catalyze the asymmetric [3+2] cycloaddition of phenylidenemalononitrile with ethyl 2,3-butadienoate has been evaluated.

ETHYL23-????????95 ?? ?? ? ???

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ETHYL23-????????95 ?? ??

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ETHYL23-????????95 ?? ??:

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