89544-84-3 Usage
General Description
Cyclopropanecarboxylic acid, 1-bromo- is a chemical compound with the molecular formula C4H5BrO2. It belongs to the family of carboxylic acids and contains a three-membered cyclopropane ring. The presence of a bromine atom makes it a bromo-substituted carboxylic acid, which is commonly used in organic synthesis and pharmaceutical research. It is primarily used as a building block in the synthesis of various organic compounds due to its unique structure and reactivity. The compound may have applications in drug discovery, medicinal chemistry, and other fields that require the manipulation of chemical structures.
Check Digit Verification of cas no
The CAS Registry Mumber 89544-84-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,5,4 and 4 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 89544-84:
(7*8)+(6*9)+(5*5)+(4*4)+(3*4)+(2*8)+(1*4)=183
183 % 10 = 3
So 89544-84-3 is a valid CAS Registry Number.
89544-84-3Relevant articles and documents
A Facile Route to gem-Dibromocyclopropane
Barnier, Jean-Pierre,Rousseau, Gerard,Conia, Jean-Marie
, p. 915 - 916 (1983)
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Trispirododecane-4,8,12-trione and Other Oligomers of Carbonylcyclopropane. The Organozinc Route
Hoffmann, H. Martin R.,Eggert, Ulrike,Walenta, Angela,Weineck, Edeltraut,Schomburg, Dietmar,et al.
, p. 6096 - 6100 (2007/10/02)
1-Bromocyclopropanecarboxylic acid (8) and its chloride (9) were prepared from γ-butyrolactone on a 20-100-g scale.Dehalogenation of 9 with zinc-copper couple in acetonitrile gave not only the known dispiro octane-4,8-dione (3) but also the aesthetically pleasing title compound 10 and 6-cyclopropylidene-5-oxaspirohexan-4-one (11) as well as tetracyclic α-alkylidene-γ-butyrolactone 12, i.e., 3-(oxodispirooctan-4-ylidene)tetrahydro-2-furanone. "Zinc carbon enolate" 13a is considered to be an important intermediate en route to 10 in solventacetonitrile.The X-ray crystal structure of 10 shows the molecule to be nearly planar with very short distal cyclopropane carbon-carbon bonds .
