反応 #1508

ord-e36c9a7b969845f3b2fcc8a9dfe44e3f

反応方程式

[H][H]
hydrogen
c1ccc([PH+](c2ccccc2)c2ccccc2)cc1
triphenylphosphonium
COC(=O)c1ccc2cc(C=O)ccc2c1
6-formyl-2-naphthalenecarboxylic acid methyl ester
ClCCl
methylene chloride
COC(=O)c1ccc2ccccc2c1
2-naphthalenecarboxylic acid methyl ester

反応条件

詳細条件
See reaction.notes.procedure_details.

実験手順

For example, 4'-alkoxy-4-bromobiphenyl (17) is reacted with triphenylphosphin to obtain triphenylphosphonium salt of 4'-alkoxybiphenyl (21). The thus obtained triphenylphosphonium salt of 4'-alkoxybiphenyl (21) is reacted with 6-formyl-2-naphthalenecarboxylic acid methyl ester as a solution in such as methylene chloride and then the resulting compound is reacted with hydrogen in the presence of the reducing catalyst such as paradium carbon in a solvent such as tetrahydrofuran (THF) to obtain 6-[4'-alkoxy-4-biphenyl)ethyl]-2-naphthalenecarboxylic acid methyl ester. The resulting 6-[4'-alkoxy-4-biphenyl)ethyl]-2-naphthalenecarboxylic acid methyl ester is hydrolysised to obtain 6-[4'-alkoxy-4-biphenyl)ethyl]-2-naphthalenecarboxylic acid (22).

出典

DOI: 10.6084/m9.figshare.5104873.v1特許: US05725798uspto-grants-1998_03