Phosphorus trichloride → 4-Chloro-9-(2-trimethylsilanyl-ethoxymethyl)-9H-dipyrido[2,3-b;4',3'-d]pyrrole-6-carbonitrile

HRID 60249노트

반응식

HRID 60249 반응식
[Cl:1][C:2]1[C:10]2[C:9]3[CH:11]=[C:12]([C:16]#[N:17])[N+:13]([O-])=[CH:14][C:8]=3[N:7]([CH2:18][O:19][CH2:20][CH2:21][Si:22]([CH3:25])([CH3:24])[CH3:23])[C:6]=2[N:5]=[CH:4][CH:3]=1.P(Cl)(Cl)Cl>ClCCl>[Cl:1][C:2]1[C:10]2[C:9]3[CH:11]=[C:12]([C:16]#[N:17])[N:13]=[CH:14][C:8]=3[N:7]([CH2:18][O:19][CH2:20][CH2:21][Si:22]([CH3:25])([CH3:24])[CH3:23])[C:6]=2[N:5]=[CH:4][CH:3]=1

참가 물질

4

반응물 2

HCID 24387Phosphorus trichlorideHCID 670274914-Chloro-9-(2-trimethylsilanyl-ethoxymethyl)-9H-dipyrido[2,3-b;4',3'-d]pyrrole-6-carbonitrile-7-oxide

생성물 1

HCID 582666684-Chloro-9-(2-trimethylsilanyl-ethoxymethyl)-9H-dipyrido[2,3-b;4',3'-d]pyrrole-6-carbonitrile수율 95%

시약·촉매·용매 1

HCID 6344Dichloromethane용매

실험 절차

A solution of 4-chloro-9-(2-trimethylsilanyl-ethoxymethyl)-9H-dipyrido[2,3-b;4′,3′-d]pyrrole-6-carbonitrile-7-oxide (1.3 g, 3.52 mmol) in dichloromethane (11 mL) was treated with phosphorus trichloride (2N solution in dichloromethane, 1.9 mL, 3.9 mmol) and the reaction mixture was stirred at ambient temperature for 2 hours. The reaction mixture was concentrated in vacuo and purified by flash chromatography (silica, 40 g, ISCO, 0-40% ethyl acetate in heptane) to afford the title compound as a white solid (1.2 g, 93%). 1H NMR (400 MHz, CDCl3) δ 9.20 (d, J=0.9, 1H), 8.74 (d, J=0.9, 1H), 8.60 (d, J=5.3, 1H), 7.39 (d, J=5.3, 1H), 6.02 (s, 2H), 3.60 (t, J=8.0, 2H), 0.94 (t, J=8.0, 2H), −0.08 (s, 9H).

후처리

  1. concentrationThe reaction mixture was concentrated in vacuo
  2. custompurified by flash chromatography (silica, 40 g, ISCO, 0-40% ethyl acetate in heptane)

출처 및 근거

ORD 기록
ord-a4019a121dcc4270aed67ba750ef0c7a
출처 데이터셋
uspto-grants-2016_09
특허 번호
US09440976B2

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