Tributylvinyltin → HCID 86732066, compound

HRID 1498803Notes

Reaction equation

HRID 1498803 reaction equation
Cl[C:2]1[CH:7]=[C:6]([N:8]2[C:12]([CH3:13])=[N:11][C:10]([CH3:14])=[N:9]2)[N:5]=[C:4]([CH3:15])[N:3]=1.[CH2:16]([Sn](CCCC)(CCCC)C=C)[CH2:17]CC>C1(C)C=CC=CC=1.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[CH3:14][C:10]1[N:11]=[C:12]([CH3:13])[N:8]([C:6]2[CH:7]=[C:2]([CH:16]=[CH2:17])[N:3]=[C:4]([CH3:15])[N:5]=2)[N:9]=1

Participants

5

Reactant 2

HCID 81998TributylvinyltinHCID 624817454-chloro-6-(3,5-dimethyl-1H-1,2,4-triazol-1-yl)-2-methylpyrimidine

Product 1

HCID 86732066HCID 86732066, compound

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 1140TolueneSolvent

Procedure

A slurry of 4-chloro-6-(3,5-dimethyl-1H-1,2,4-triazol-1-yl)-2-methylpyrimidine (2-2, 800 mg, 3.58 mmol, 1.0 eq.), tributyl(vinyl)tin (1.358 mL, 4.65 mmol, 1.3 eq.) and tetrakis(triphenylphosphine)palladium(0) (207 mg, 0.179 mmol, 0.050 eq.) in toluene (20 mL) was heated at 110° C. for 3 hours. Toluene was removed by roto-evaporation and the resulting residue was purified by silica gel column chromatography (0-100% ethyl acetate in hexanes) to afford 4-(3,5-dimethyl-1H-1,2,4-triazol-1-yl)-2-methyl-6-vinylpyrimidine (2-3) as a white solid. 1H NMR (500 MHz, CDCl3) δ 7.64 (s, 1H), 6.77 (m, 1H), 6.53 (d, 1H, J=17 Hz), 5.73 (d, 2H, J=11 Hz), 2.92 (s, 3H), 2.72 (s, 3H), 2.42 (s, 3H). LRMS m/z (M+H) 216.2 found, 216.1 required.

Workup

  1. customToluene was removed by roto-evaporation
  2. customthe resulting residue was purified by silica gel column chromatography (0-100% ethyl acetate in hexanes)

Sources & evidence

ORD record
ord-19971e46cb384c22a084643cb110383d
Source dataset
uspto-grants-2015_12
Patent number
US09200001B2

Reaction notes

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