98775-14-5 Usage
General Description
1-(bromo-methyl)-1-methyl-cyclobutane is a chemical compound with the molecular formula C7H13Br. It is a cyclobutane derivative that contains a bromomethyl and a methyl group. 1-(bromo-methyl)-1-methyl-cyclobutane is commonly used in organic synthesis as a building block for various chemical reactions, particularly in the formation of larger, more complex molecules. It is a colorless liquid with a strong, sweet odor, and it is considered to be moderately hazardous, as it can cause irritation to the skin, eyes, and respiratory system. Its main applications include pharmaceuticals, agrochemicals, and other specialty chemicals. Overall, 1-(bromo-methyl)-1-methyl-cyclobutane is an important and versatile compound in the field of organic chemistry.
Check Digit Verification of cas no
The CAS Registry Mumber 98775-14-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,7,7 and 5 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 98775-14:
(7*9)+(6*8)+(5*7)+(4*7)+(3*5)+(2*1)+(1*4)=195
195 % 10 = 5
So 98775-14-5 is a valid CAS Registry Number.
98775-14-5Relevant articles and documents
Rearrangement of the Grignard reagent from 1-methylcyclobutylmethyl bromide: origins of the methyl substituent effect
Hill, E. Alexander,Hallade, Marc W.
, p. 263 - 272 (2007/10/02)
1-Methyl substitution leads to a small decrease (ca. 0.45) in the rate of the ring cleavage rearrangement of cyclobutylmethylmagnesium bromide.Comparison with literature data for 3- and 5-membered rings indicates that the methyl substituent shifts the equilibrium in the direction of ring cleavage, mostly by stabilization of the double bond of the open isomer, and possibly partly by destabilization of the organometallic function of the cyclic isomer.The reaction rate is decreased in both directions, probably because of increased transition state steric repulsions.
