Reaktion #60792

Reaktionsgleichung

DIPEA

4,6-dichloropyrimidine-5-carbaldehyde

intermediate 8

4,6-dichloropyrimidine-5-carbaldehyde

methylthioglycolate

→

title compound

Methyl [(6-chloro-5-formylpyrimidin-4-yl)thio]acetate

Lösungsmittel

DCM

DCM

Reaktionsbedingungen

Aufarbeitung

1. 1
   Temperaturto warm to ambient temperature over 2 hours
2. 2
   Waschenwashed with water (4×50 mL)
3. 3
   Trocknendried (MgSO4)
4. 4
   Filtrationfiltered
5. 5
   Einengenconcentrated in vacuo

Vorschrift

DIPEA (4.1 mL) was added to a solution of 4,6-dichloropyrimidine-5-carbaldehyde (intermediate 8) (4.2 g) in DCM (85 mL) under an inert atmosphere. The solution was cooled to −10° C. and methylthioglycolate (2.1 mL) in DCM (40 mL) was added dropwise over 30 minutes. The reaction mixture was allowed to warm to ambient temperature over 2 hours, washed with water (4×50 mL), dried (MgSO4), filtered and concentrated in vacuo to give the title compound as an orange oil which later solidified (5.4 g, 92%);

Quelle