4-METHYL-1-INDANONE

white to light yellow crystal powder

General procedure: Trifluoromethane sulfonic acid (3 eq.) was gently added to a cooled (0 °C) solution of a 3-Phenylpropionic acid (0.5 mmol) in dry CHBriefly, into a 250-mL round-bottom flask, was placed a solution of 2- methylbenzaldehyde (8 g, 66.58 mmol, 1.00 equiv) in ethanol (80 mL), malonic acid (7.6 g, 73.03 mmol, 1.10 equiv), Pyridine (5 mL). The resulting solution was heated to reflux for 48 hr and allowed to cool to room temperature. The crystalline mass which formed was collect by filtration and washed with ethanol. This resulted in 6 g (55percent) of (E -3-o- tolylacrylic acid as a white solid. Next, into a 250-mL round-bottom flask was placed a solution of (is)-3-o-tolylacrylic acid (12 g, 73.99 mmol, 1.00 equiv) in methanol (80 mL), Palladium carbon (2 g, 10percent). Hydrogen was bubbled into the solution and the resulting solution was stirred overnight at room temperature. The solids were filtered out and the residue was concentrated under vacuum. This resulted in 12 g (98percent) of 3-o-tolylpropanoic acid as colorless oil. Next, a solution of 3-o-tolylpropanoic acid (12 g, 73.08 mmol, 1.00 equiv) in TfOH (70 mL) was placed into a 250-mL round-bottom flask. The resulting solution was stirred overnight at room temperature. Then, ice-water was added and extracted with DCM. The combined organic phases were dried over anhydrous NaBriefly, into a 250-mL round-bottom flask, was placed a solution of 2-methylbenzaldehyde (8 g, 66.58 mmol, 1.00 equiv) in ethanol (80 mL), malonic acid (7.6 g, 73.03 mmol, 1.10 equiv), Pyridine (5 mL). The resulting solution was heated to reflux for 48 hr and allowed to cool to room temperature. The crystalline mass which formed was collect by filtration and washed with ethanol. This resulted in 6 g (55percent) of (E)-3-o-tolylacrylic acid as a white solid. Next, into a 250-mL round-bottom flask was placed a solution of (E)-3-o-tolylacrylic acid (12 g, 73.99 mmol, 1.00 equiv) in methanol (80 mL), Palladium carbon (2 g, 10percent). Hydrogen was bubbled into the solution and the resulting solution was stirred overnight at room temperature. The solids were filtered out and the residue was concentrated under vacuum. This resulted in 12 g (98percent) of 3-o-tolylpropanoic acid as colorless oil. Next, a solution of 3-o-tolylpropanoic acid (12 g, 73.08 mmol, 1.00 equiv) in TfOH (70 mL) was placed into a 250-mL round-bottom flask. The resulting solution was stirred overnight at room temperature. Then, ice-water was added and extracted with DCM. The combined organic phases were dried over anhydrous Na

Molecular Weight:146.19
XLogP3:2
Hydrogen Bond Acceptor Count:1
Exact Mass:146.073164938
Monoisotopic Mass:146.073164938
Topological Polar Surface Area:17.1
Heavy Atom Count:11
Complexity:174
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes