71042-74-5 Usage
Carboxylic acid derivative
It is a compound derived from a carboxylic acid by replacing the hydroxyl group (-OH) with another functional group.
Bicyclic structure
The compound has a two-ring structure, which is characteristic of many organic compounds.
Methyl group attachment
A methyl group (-CH3) is attached to the 7th carbon atom in the structure, which influences the compound's properties and reactivity.
Organic synthesis and pharmaceutical research
The compound is used as a building block in the synthesis of more complex organic molecules and has potential applications in the development of drugs and pharmaceuticals.
Unique structure and functional groups
The compound's structure and functional groups make it valuable for the synthesis of complex organic molecules and pharmaceutical intermediates.
Biological activity and therapeutic potential
The compound may possess biological activity, which could lead to its use in the development of new drugs and therapies.
Valuable target for research and development
Due to its unique structure and potential applications, 2,3-Dihydro-7-methyl-1H-indene-4-carboxylic acid is a valuable target for further research and development in the pharmaceutical industry.
Check Digit Verification of cas no
The CAS Registry Mumber 71042-74-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,0,4 and 2 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 71042-74:
(7*7)+(6*1)+(5*0)+(4*4)+(3*2)+(2*7)+(1*4)=95
95 % 10 = 5
So 71042-74-5 is a valid CAS Registry Number.
InChI:InChI=1/C11H12O2/c1-7-5-6-10(11(12)13)9-4-2-3-8(7)9/h5-6H,2-4H2,1H3,(H,12,13)
71042-74-5Relevant academic research and scientific papers
Improved Synthesis of 3-Methylcholanthrene
Tang, Ping Wah,Maggiulli, Cataldo A.
, p. 3429 - 3432 (2007/10/02)
An improved synthesis of 7-methylindan-4-yl 1-naphthyl ketone (3), an important precursor of 3-methylcholanthrene (1), has been developed.The key intermediates for 3, 4-cyano-7-methylindan (2a) and 4-(ethoxycarbonyl)-7-methylindan (2b), were conveniently prepared in high yields by reaction of 1-(1-pyrrolidino)cyclopentene (6) with sorbonitrile (5a) or ethyl sorbate (5b), followed by aromatization with sulfur. 1-Naphthylmagnesium bromide (4b) in the presence of cuprous iodide reacted cleanly with 4-(chloromethanoyl)-7-methylindan (12) to give 3.The Friedel-Crafts acylation of naphthalene with 12 afforded 84percent of 3 and 16percent of β isomer 13.Alternatively, 3 was prepared in 75percent yield by condensation of Grignard reagent 4b with 2a in THF.Thermal annelation of 3 afforded 1 in 41.5percent yield.
