Synthetic Route of 64169-67-1, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.64169-67-1, Name is 1-(4-Fluorophenyl)-1,3-dihydroisobenzofuran-5-carbonitrile, molecular formula is C15H10FNO. In a Patent£¬once mentioned of 64169-67-1
IMPROVED PROCESS FOR THE PREPARATION OF 5-SUBSTITUTED-1-(4-?FLUOROPHENYL)-1,3-DIHYDROISOBENZOFURANS
The present invention provides a process for the preparation of a 5-substituted-l-(4-fluorophenyl)-1,3-dihydro-isobenzofuran of Formula (2), an intermediate for the manufacture of citalopram, which process comprises: (a) carrying out a Grignard reaction on a corresponding 5-substituted phthalide of Formula (3) in a co-solvent system, comprising adding (i) prepared 4-fluorophenyl magnesium halide in an ether solvent to (ii) the 5-substituted phthalide in a suitable organic co-solvent to the ether solvent, to form a corresponding 4-substituted-2-hydroxymethyl-4′-fluorobenzophenone of Formula (4); (b) carrying out a ketone reduction of the 4-substituted-2-hydroxymethyl-4′-fluorobenzophenone of Formula (4) following the Grignard reaction, to form a corresponding 4-substituted-2-hydroxymethylphenyl- 1-(4-fluorophenyl) methanol of Formula (5); and (c) carrying out a cyclisation reaction on the 4-substituted-2 hydroxymethylphenyl- 1-(4-fluorophenyl) methanol of Formula (5) following the reduction reaction, to form said intermediate of Formula (2); wherein R represents Br or CN.
We¡¯ll also look at important developments in the pharmaceutical industry because understanding organic chemistry is important in understanding health, medicine, the role of 64169-67-1, and how the biochemistry of the body works.Synthetic Route of 64169-67-1
Reference£º
Benzofuran – Wikipedia,
Benzofuran | C8H3886O – PubChem