Toluene → [2,3-Quinoxalindiyl]bis(methylene) bisphosphonic acid tetramethyl ester

HRID 2379025

反応式

HRID 2379025 の反応式
[N:1]1[C:10]2[C:5](=[CH:6]C=C[CH:9]=2)[N:4]=CC=1.C[O:12][P:13]([O:16][CH3:17])[O:14][CH3:15].[C:18]1(C)[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=1>>[CH3:15][O:14][P:13]([CH2:6][C:5]1[C:10]([CH2:9][P:13](=[O:12])([O:16][CH3:17])[O:14][CH3:15])=[N:1][C:18]2[C:19]([N:4]=1)=[CH:20][CH:21]=[CH:22][CH:23]=2)(=[O:12])[O:16][CH3:17]

参加物

4

反応物 3

HCID 1140TolueneHCID 7045QuinoxalineHCID 8472Trimethyl phosphite

生成物 1

HCID 86747692[2,3-Quinoxalindiyl]bis(methylene) bisphosphonic acid tetramethyl ester

実験手順

This known compound is prepared by making a solution of quinoxaline (3.16 g, 10 mmol) in hot toluene (20 ml) and treating with trimethylphosphite (2.73 g, 22 mmol). The mixture is heated at reflux temperature for 24 hours. The cooled solution deposits [2,3-quinoxalindiyl]bis(methylene) bisphosphonic acid tetramethyl ester (2.70 g, m.p. 113°-114° C.) after recrystallization from toluene. V. A. Arbuzov et al. Izvest Acad. Nauk SSSR, 1961, 1016; 1954, E 868; (Chem Abstracts (CA) 55:27352b; CA 49:13222e) report a m.p. 115°-116° C.

後処理

  1. customThis known compound is prepared
  2. temperatureThe mixture is heated
  3. temperatureat reflux temperature for 24 hours
  4. customThe cooled solution deposits [2,3-quinoxalindiyl]bis(methylene) bisphosphonic acid tetramethyl ester (2.70 g, m.p. 113°-114° C.) after recrystallization from toluene

出典と根拠

ORDレコード
ord-f34d2c28a3e748239ebc0e43af627408
出典データセット
uspto-grants-1994_11
特許番号
US05360797

関連ノート

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