反応 #502099

ord-273c22f736b74f3fb7dd97c44a5839b7

反応方程式

CC1(C)OB(c2ccc3nc(-c4ccc(Cl)cc4)cn3c2)OC1(C)C
2-(4-chlorophenyl)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)imidazo[1,2-a]pyridine
Cl
hydrochloric acid
CCOCC
diethyl ether
Cl.OB(O)c1ccc2nc(-c3ccc(Cl)cc3)cn2c1
compound
収率 199.0%
Cl.OB(O)c1ccc2nc(-c3ccc(Cl)cc3)cn2c1
[2-(4-chlorophenyl)imidazo[1,2-a]pyridin-6-yl]boronic acid hydrochloride
収率 199.0%

反応条件

詳細条件
See reaction.notes.procedure_details.

後処理

  1. 1
    workup.STIRRINGthe mixture is stirred at ambient temperature for 24 h
  2. 2
    濃縮The reaction mixture is then concentrated under reduced pressure
  3. 3
    その他The solid obtained
  4. 4
    ろ過recovered by filtration
  5. 5
    その他dried in an oven under reduced pressure at 60° C

実験手順

3.60 g of 2-(4-chlorophenyl)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)imidazo[1,2-a]pyridine are dissolved in 112 ml of acetone and 56 ml of water; 101 ml of 1N hydrochloric acid are added thereto, dropwise and with stirring, and the mixture is stirred at ambient temperature for 24 h. The reaction mixture is then concentrated under reduced pressure. The solid obtained is titurated with diethyl ether and recovered by filtration, and then dried in an oven under reduced pressure at 60° C. 3.12 g of compound are obtained.

出典

DOI: 10.6084/m9.figshare.5104873.v1特許: US08088765B2uspto-grants-2012_01