4-Bromo-1-butene 5162-44-7 CAS NO.5162-44-7

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4-Bromo-1-butene is a brominated alkene used as a reagent in organic synthesis and as a pharmaceutical intermediate

4-Bromo-1-butene Basic information

Product Name:	4-Bromo-1-butene
Synonyms:	1-Bromo-3-butene;1-butene,4-bromo-;3-BUTENYL BROMIDE;4-BROMO-1-BUTENE, STAB.;4-Bromo-1-butene, 98+%;4-Bromo-1-butene, GC 98%;4-bromo-1-buten;4-bromo-but-1-ene
CAS:	5162-44-7
MF:	C4H7Br
MW:	135
EINECS:	225-937-4
Product Categories:	Building Blocks;Chemical Synthesis;omega-Functional Alkanols, Carboxylic Acids, Amines & Halides;omega-Unsaturated Halides;Halogenated Hydrocarbons;Organic Building Blocks;Halides;Alkenyl;Halogenated Hydrocarbons;Organic Building Blocks
Mol File:	5162-44-7.mol

4-Bromo-1-butene Chemical Properties

Melting point	-115.07°C (estimate)
Boiling point	98-100 °C (lit.)
density	1.33 g/mL at 25 °C (lit.)
refractive index	n20/D 1.462(lit.)
Fp	49 °F
storage temp.	Store below +30°C.
solubility	0.76g/l
form	Liquid
color	Clear colorless to light brownish
Specific Gravity	1.330
Water Solubility	Miscible with water, benzene, ether and ethanol.
Sensitive	Light Sensitive
BRN	1098377
Stability:	Stable. Incompatible with strong bases, strong oxidizing agents. Highly flammable. Light sensitive.
InChIKey	DMAYBPBPEUFIHJ-UHFFFAOYSA-N
CAS DataBase Reference	5162-44-7(CAS DataBase Reference)
NIST Chemistry Reference	1-Butene, 4-bromo-(5162-44-7)
EPA Substance Registry System	1-Butene, 4-bromo- (5162-44-7)

Safety Information

Hazard Codes	F,Xn,Xi
Risk Statements	11-36/37-42/43
Safety Statements	26-36/37/39
RIDADR	UN 1993 3/PG 2
WGK Germany	3
F	8-19
TSCA	Yes
HazardClass	3
PackingGroup	II
HS Code	29033036

MSDS Information

Provider	Language
4-Bromo-1-butene	English
SigmaAldrich	English
ACROS	English
ALFA	English

4-Bromo-1-butene Usage And Synthesis

Chemical Properties	colourless liquid
Uses	4-Bromo-1-butene is a brominated alkene used as a reagent in organic synthesis.
Uses	4-Bromo-1-butene is used in the preparation of 4-(3-butenyloxy)benzoic acid and largazole. It is also used in double alkylation of lactams followed by Grubbs ring-closing metathesis to yield gymnodimine. Further, it serves as a reagent in the preparation of dienehydrazides.
Synthesis Reference(s)	Tetrahedron Letters, 25, p. 251, 1984 DOI: 10.1016/S0040-4039(00)99853-8
General Description	Stereoselective epoxidation of 4-bromo-1-butene was carried out with three alkene-utilizing bacteria: Mycobacterium LI, Mycobacterium E3 and Nocardia IP1.

4-Bromo-1-butene Preparation Products And Raw materials

Raw materials	2,6-Piperidinedione, 3,3-dimethyl--->methylcyclopropane-->Cyclobutyl bromide-->1,3-Dibromobutane-->Cylopropylmethyl chloride
Preparation Products	Diethyl 1,1-cyclobutanedicarboxylate-->1,7-Octadiene-->7-Bromoheptanenitrile-->4-bromobutyraldehyde-->4-bromobutan-2-one

 

 

 

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