2(3H)-Furanone,3-bromodihydro-5-methyl-

Names

[ CAS No. ]:
25966-39-6

[ Name ]:
2(3H)-Furanone,3-bromodihydro-5-methyl-

[Synonym ]:
EINECS 247-380-6
2-bromo-2-methylbutyrolactone
MFCD00005388

Chemical & Physical Properties

[ Density]:
1.618g/cm3

[ Boiling Point ]:
254.1ºC at 760mmHg

[ Molecular Formula ]:
C₅H₇BrO₂

[ Molecular Weight ]:
179.01200

[ Flash Point ]:
107.5ºC

[ Exact Mass ]:
177.96300

[ PSA ]:
26.30000

[ LogP ]:
1.08530

[ Vapour Pressure ]:
0.0175mmHg at 25°C

[ Index of Refraction ]:
n20/D 1.493(lit.)

MSDS

Safety Information

[ Symbol ]:

GHS05, GHS07

[ Signal Word ]:
Danger

[ Hazard Statements ]:
H314-H335

[ Precautionary Statements ]:
P261-P280-P305 + P351 + P338-P310

[ Personal Protective Equipment ]:
Faceshields;full-face respirator (US);Gloves;Goggles;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter

[ Hazard Codes ]:
C

[ Risk Phrases ]:
R34;R36/37

[ Safety Phrases ]:
S26;S27;S28;S45;S36/S37/S39

[ RIDADR ]:
UN 3265 8/PG 2

[ Packaging Group ]:
III

[ HS Code ]:
2932209090

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

γ-Valerolactone
Alpha-Methyl-Gamma-Butyrolactone
2,4-dibromopentanoyl bromide
Benzyl alcohol

DownStream

γ-Valerolactone
ethyl (1R,2R)-2-methylcyclopropane-1-carboxylate
5-methyl-3-(triphenyl-λ5-phosphanylidene)oxolan-2-one
3-diethoxyphosphoryl-5-methyloxolan-2-one
Dihydro-5-methyl-3-methylene-2(3H)-furanone
2-methyl-4-phenylsulfanyl-2H-furan-5-one

Customs

[ HS Code ]: 2932209090

[ Summary ]:
2932209090. other lactones. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Articles

Synthesis of azepino[4,5-b]indolones via an intermolecular radical oxidative substitution of N-Boc tryptamine.

Org. Biomol. Chem. 7(7) , 1388-1396, (2009)

A two-step protocol for the synthesis of azepino[4,5-b]indolone derivatives featuring a xanthate radical oxidative aromatic substitution on the N-Boc protected tryptamine, using dilauroyl peroxide (DL...

2(3H)-Furanone,3-bromodihydro-3-methyl-
2(3H)-Furanone,3-acetyldihydro-5-methyl-
2(3H)-Furanone, 3-acetyl-5-methyl- (9CI)
2(3H)-Furanone,3-[(dimethylamino)methylene]-5-methyl-(9CI)
2(3H)-Furanone,3,5-bis[(3,4-dimethoxyphenyl)methyl]dihydro-
2(3H)-Furanone,3-(3-furanylcarbonyl)dihydro-5-methyl-
[2-(Furan-2-yl)ethyl](prop-2-en-1-yl)amine
tert-Butyl ((2S,3S)-3-methyl-1-((2-morpholinoethyl)amino)-1-oxopentan-2-yl)carbamate
Methyl 1-((2-(trimethylsilyl)ethoxy)methyl)-1H-imidazole-2-carboxylate
(2s)-1-(Pyridin-3-yl)propan-2-ol
3-Quinolinecarboxylic acid, 8-bromo-4-chloro-6-cyano-, ethyl ester
2-[2-(propan-2-yl)-1H-imidazol-1-yl]cyclopentan-1-ol
7-Bromo-4-tert-butylsulfanyl-thieno[3,2-d]pyrimidine
Ethyl 8-bromo-6-cyano-4-hydroxyquinoline-3-carboxylate
Ethyl 2-amino-5-(3,3-dimethylmorpholin-4-yl)-4-fluorobenzoate
4-Allylpiperidine-4-carboxylic acid

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