Phosphorus oxychloride → HCID 18763594, compound
Reaction equation
[CH3:1][C:2]1[N:7]=[C:6](/[CH:8]=[CH:9]/[C:10]2[CH:15]=[CH:14][C:13]([S:16][CH3:17])=[CH:12][CH:11]=2)[N:5]=[C:4](O)[CH:3]=1.O=P(Cl)(Cl)[Cl:21]>>[Cl:21][C:4]1[CH:3]=[C:2]([CH3:1])[N:7]=[C:6](/[CH:8]=[CH:9]/[C:10]2[CH:15]=[CH:14][C:13]([S:16][CH3:17])=[CH:12][CH:11]=2)[N:5]=1Participants
3
Procedure
In analogy to example 12c), by heating (E)-6-methyl-2-[2-(4-methylsulfanyl-phenyl)-vinyl]-pyrimidin-4-ol (2 g, 7.74 mmol) in POCl3 (14 ml, 0.15 mol) at 130° C. for 4.5 h there was obtained (E)-4-chloro-6-methyl-2-[2-(4-methylsulfanyl-phenyl)-vinyl]-pyrimidine (1.99 g, 93%) as an off-white solid. EI mass spectrum, m/e: 276.1 (M calculated for C14H13ClN2S: 276).
Sources & evidence
- ORD record
- ord-10e99004be524a95a0d5f135886c7502
- Source dataset
- uspto-grants-2003_12
- Patent number
- US06657060B2
Reaction notes
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