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CAS No.: | 13991-36-1 | ||||||
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Name: | 4-BROMOCROTONIC ACID | ||||||
Article Data: | 65 | ||||||
Molecular Structure: | |||||||
Formula: | C4H5 Br O2 | ||||||
Molecular Weight: | 164.986 | ||||||
Synonyms: | 2-Butenoicacid, 4-bromo-, (E)-; Crotonic acid, 4-bromo-, (E)- (8CI); (E)-4-Bromocrotonicacid; trans-4-Bromo-2-butenoic acid | ||||||
Density: | 1.718g/cm3 | ||||||
Melting Point: | 74 °C | ||||||
Boiling Point: | 287.6°Cat760mmHg | ||||||
Flash Point: | 127.7°C | ||||||
Hazard Symbols: | R34:; | ||||||
Risk Codes: | 34 | ||||||
Safety: |
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PSA: | 37.30000 | ||||||
LogP: | 1.02210 |
(E)-but-2-enoic acid
4-bromocrotonic acid
Conditions | Yield |
---|---|
With N-Bromosuccinimide; 2,2'-azobis(isobutyronitrile) In tetrachloromethane Reflux; | 98% |
With N-Bromosuccinimide; dibenzoyl peroxide In tetrachloromethane at 77℃; for 4h; | 93% |
With N-Bromosuccinimide; 2,2'-azobis(isobutyronitrile) In benzene at 84℃; for 2.5h; | 91.3% |
methyl-4-bromo-2-butenoate
4-bromocrotonic acid
Conditions | Yield |
---|---|
With lithium hydroxide In tetrahydrofuran; water for 3h; | 84.4% |
With lithium hydroxide monohydrate; water In tetrahydrofuran at 0℃; for 2h; | 83% |
With lithium hydroxide monohydrate; water In tetrahydrofuran at 0℃; for 2h; | 83% |
(E)-4-chlorobut-2-enoic acid
4-bromocrotonic acid
Conditions | Yield |
---|---|
With sodium bromide In acetone at 50℃; for 120h; | 81% |
but-3-enoic acid
4-bromocrotonic acid
Conditions | Yield |
---|---|
With N-Bromosuccinimide Inert atmosphere; | 70% |
2-butenoic acid
4-bromocrotonic acid
Conditions | Yield |
---|---|
With N-Bromosuccinimide; 2,2'-azobis(isobutyronitrile) In toluene for 2h; Heating; | 47% |
With N-Bromosuccinimide; 2,2'-azobis(isobutyronitrile) In tetrachloromethane at 95 - 100℃; for 6h; |
4-bromo-trans-crotonic acid ethyl ester
4-bromocrotonic acid
Conditions | Yield |
---|---|
With barium dihydroxide; ethanol at -10℃; zuletzt 1-2grad; | |
With lithium hydroxide monohydrate; water In tetrahydrofuran at 0℃; for 2h; | 200 mg |
vinyl glycolic acid
4-bromocrotonic acid
Conditions | Yield |
---|---|
With diethyl ether; phosphorus tribromide |
γ-bromocrotonate de trimethylsilyle
4-bromocrotonic acid
Conditions | Yield |
---|---|
With water for 0.0833333h; Yield given; |
methyl-4-bromo-2-butenoate
hydrogen bromide
4-bromocrotonic acid
diethyl ether
vinyl glycolic acid
phosphorus tribromide
4-bromocrotonic acid