4-Aminophthalide

A suspension of 4-nitroisobenzofuran-1(3H)-one (1.0 g, 5.58 mmol) and 10percent Pd/C (0.1 g) in ethyl acetate (30 mL) was purged in 1 atm hydrogen and stirred at 25° C. for 3 hr. The mixture was filtered, and the filtrate was concentrated to give 4-aminoisobenzofuran-1(3H)-one (0.8 g, yield 96percent) as a off-white solid. MS (ESI) m/z: 150(M+1)Example 2B4-Aminoisobenzofuran- 1 (3H)-one[00472] A suspension of 4-nitroisobenzofuran- l(3H)-one (1.0 g, 5.58 mmol) and 10percent Pd/C (0.1 g) in ethyl acetate (30 mL) was purged in latm hydrogen and stirred at 25 °C for 3 hr. The mixture was filtered, and the filtrate was concentrated to give 4-aminoisobenzofuran-l(3H)-one (0.8 g, yield 96percent) as a off- white solid. MS (ESI) m/z: 150(M+1)Example 10A(£)-4-(4-(diethoxymethyl)benzylideneamino)isobenzofuran- l(3H)-one[00498] 4-Aminoisobenzofuran- 1 (3H)-one (600 mg, 4 mmol), 4-(ethoxy(methoxy)methyl)benzaldehyde (1.6 g, 8 mmol) and 1 g of magnesium sulfate were added into 40 mL of dichloromethane and stirred under reflux overnight, then the mixture was evaporated under reduced pressure and the residue was dried in vacuum to give 600 mg of crude product (E)-4-(4-(diethoxymethyl)benzylideneamino)isobenzofuran- 1 (3H)-one which without further purification was used in next step.

Molecular Weight:149.15
XLogP3:0.7
Hydrogen Bond Donor Count:1
Hydrogen Bond Acceptor Count:3
Exact Mass:149.047678466
Monoisotopic Mass:149.047678466
Topological Polar Surface Area:52.3
Heavy Atom Count:11
Complexity:181
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes