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??????????
?????????? ??? ???
?? ??:
623-43-8
???:
??????????
???(??):
????????;??????????;????????(METHYLCROTONATE);?????-2-??????;?? ??????
???:
trans-Methyl crotonate
???(??):
Methyl (E)-but-2-enoate;Methyl trans-2-butenoate;METHYICROTONATE;METHYL CROTONATE;Methyl-2-Crotonate;Methyl E-crotonate;MethylCrotonate>METHYL BUT-2-ENOATE;Methylcrotonate,98%;Methyl-α-crotonate
CBNumber:
CB9745331
???:
C5H8O2
??? ??:
100.12
MOL ??:
623-43-8.mol
MSDS ??:
SDS

?????????? ??

???
-42°C
?? ?
118-120 °C (lit.)
??
0.944 g/mL at 25 °C (lit.)
???
n20/D 1.423(lit.)
???
40 °F
?? ??
Flammables area
??? ??
??
??
???
??
????? ??? ? 1.00%. ??? ?? ???
?? ??
??
???
?? ? ??
Merck
14,2597
BRN
1720292
InChI
InChI=1S/C5H8O2/c1-3-4-5(6)7-2/h3-4H,1-2H3/b4-3+
InChIKey
MCVVUJPXSBQTRZ-ONEGZZNKSA-N
SMILES
C(OC)(=O)/C=C/C
LogP
1.316 (est)
CAS ??????
623-43-8(CAS DataBase Reference)
NIST
2-Butenoic acid, methyl ester, (E)-(623-43-8)
EPA
Methyl trans-crotonate (623-43-8)
??
  • ?? ? ?? ??
  • ?? ? ???? ?? (GHS)
??? ?? F,Xi
?? ???? ?? 11-36/37/38
????? 16-26-36-9-33
????(UN No.) UN 3272 3/PG 2
WGK ?? 2
RTECS ?? GQ5710000
TSCA TSCA listed
?? ?? 3
???? II
HS ?? 29161980
???? ??? 3 - Flammable liquids
Hazard Classifications Eye Irrit. 2
Flam. Liq. 2
???? ?? KE-04103
????(GHS): Flame (GHS02)Exclamation Mark (GHS07)
?? ?: Danger
??·?? ??:
?? ??·?? ?? ?? ?? ?? ?? ? ?? ?? P- ??
H225 ???? ?? ? ?? ??? ?? ?? 2 ?? P210,P233, P240, P241, P242, P243,P280, P303+ P361+P353, P370+P378,P403+P235, P501
H315 ??? ??? ??? ????? ?? ????? ?? 2 ?? P264, P280, P302+P352, P321,P332+P313, P362
H319 ?? ?? ??? ??? ?? ? ?? ?? ??? ?? ?? 2A ?? P264, P280, P305+P351+P338,P337+P313P
??????:
P210 ?·???·??·????? ????? - ?? ???.
P233 ??? ??? ?????. ??? ??? ? ?? ?? ??? ???? ?????.
P240 ??? ????? ?? ? ??????.
P241 ?? ??? ??[???/??/??/...]?(?) ?????.
P242 ???? ???? ?? ??? ?????
P243 ??? ?? ??? ????.
P264 ?? ??? ?? ??? ????.
P264 ?? ??? ?? ??? ????.
P280 ????/???/???/?????? ?????.
P303+P361+P353 ??(?? ????)? ??? ??? ?? ??? ??? ????? ??? ?? ????/?????.
P305+P351+P338 ?? ??? ? ?? ?? ???? ????. ???? ?????? ?????. ?? ????.
P332+P313 ?? ??? ??? ???? ??· ??? ????.
P337+P313 ?? ?? ??? ???? ???? ??· ??? ????.
P370+P378 ?? ? ?? ?? ?? (Section 5. ??, ??? ????? ??? ???)?(?) ?????.
P403+P235 ??? ? ?? ?? ???? ???? ?????.
P501 ...? ??? / ??? ?? ???.
NFPA 704
3
2 0

?????????? MSDS


(E)-2-Butenoic acid methyl ester

?????????? C??? ??, ??, ??

??? ??

CLEAR COLOURLESS LIQUID

??

Methyl crotonate was used to investigate chemo selectivity in the reaction between methyl crotonate and benzyl amine catalyzed by lipase B from Candida Antarctica using solvent engineering. It was used as starting reagent during the total synthesis of phytotoxins solanapyrones D(1) and E(2).

?? ??

Methyl crotonate undergoes vinylogous aldol reaction with enolizable aldehydes in the presence of aluminum tris(2,6-di-2-naphthylphenoxide).

?????????? ?? ?? ? ???

???

?????

?? ??

Cefaclor monohydrate Barnidipine hydrochloride Nicardipine 2,4-DECADIENOIC ACID METHYL ESTER 1H-Pyrazole-3-carboxylic acid, 4-methyl-5-(trifluoromethyl)-, methyl ester ??????????? 4,5,5-????-2-?????

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???( 247)?? ??
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