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CAS No.: | 10304-09-3 |
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Name: | methoxy(oxo)acetic acid |
Article Data: | 4 |
Molecular Structure: | |
Formula: | C3H4 O4 . K |
Molecular Weight: | 142.153 |
Synonyms: | Ethanedioicacid, monomethyl ester, potassium salt (9CI); Oxalic acid, methyl ester,potassium salt (7CI,8CI); Monomethyl oxalate potassium salt; Potassium methyloxalate |
Density: | 1.366g/cm3 |
Boiling Point: | 192.9°C at 760 mmHg |
Flash Point: | 88.9°C |
PSA: | 63.60000 |
LogP: | -0.75600 |
Dimethyl oxalate
potassium oxalate monomethyl ester
Conditions | Yield |
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With potassium acetate In methanol; water at 80℃; for 3h; | 100% |
With potassium acetate In methanol; water at 80℃; for 3h; | 91% |
With potassium acetate In methanol; water at 60℃; for 1h; | 80% |
With potassium acetate In methanol; water at 90℃; for 2h; Reflux; |
potassium oxalate monomethyl ester
(2R)-2,3-diaminopropanoic acid monohydrochloride
Conditions | Yield |
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Stage #1: (2R)-2,3-diaminopropanoic acid monohydrochloride With lithium hydroxide monohydrate In methanol; water for 1h; Cooling with ice; Stage #2: potassium oxalate monomethyl ester In methanol; water at 20℃; for 18h; Concentration; | 77% |
Conditions | Yield |
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With 1,3-bis-(diphenylphosphino)propane; palladium dichloride In 1-methyl-pyrrolidin-2-one at 150℃; for 24h; Inert atmosphere; Schlenk technique; | 75% |
triphenylplumbyl hydroxide
potassium oxalate monomethyl ester
(C6H5)3PbO2CCO2CH3
Conditions | Yield |
---|---|
With methanol In methanol HO2CCO2CH3 prepared in situ from potassium salt in methanol, pptd. at room temp. by equimolar amount of R3MOH; suspn. in CH3OH warmed, solvent vol. reduced; elem. anal.; | 74% |
potassium oxalate monomethyl ester
Trimethylbleimonohydroxyd
(CH3)3PbO2CCO2CH3
Conditions | Yield |
---|---|
With methanol In methanol HO2CCO2CH3 prepared in situ from potassium salt in methanol, pptd. at room temp. by equimolar amount of R3MOH; suspn. in CH3OH warmed, solvent vol. reduced; elem. anal.; | 70% |
triphenyltin(IV) hydroxide
potassium oxalate monomethyl ester
(C6H5)3SnO2CCO2CH3
Conditions | Yield |
---|---|
With methanol In methanol HO2CCO2CH3 prepared in situ from potassium salt in methanol, pptd. at room temp. by equimolar amount of R3MOH; suspn. in CH3OH warmed, solvent vol. reduced; elem. anal.; | 65% |
potassium oxalate monomethyl ester
trimethyltin(IV) hydroxide
(CH3)3SnO2CCO2CH3
Conditions | Yield |
---|---|
With methanol In methanol HO2CCO2CH3 prepared in situ from potassium salt and methanol, pptd. at room temp. by equimolar amount R3MOH; suspn. in CH3OH warmed, solvent vol. reduced; elem. anal.; | 56% |
para-bromotoluene
potassium oxalate monomethyl ester
4-methyl-benzoic acid methyl ester
Conditions | Yield |
---|---|
With palladium(II) trifluoroacetate; 1,3-bis-(diphenylphosphino)propane In 1-methyl-pyrrolidin-2-one at 150℃; for 24h; Inert atmosphere; | 52% |
Ethyl 2-bromohexanoate
potassium oxalate monomethyl ester
Conditions | Yield |
---|---|
In dimethyl sulfoxide at 20℃; for 48h; Inert atmosphere; | 49% |
monomethyl oxalyl chloride
potassium oxalate monomethyl ester
methoxalic anhydride
Conditions | Yield |
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(i) aq. KOAc, MeOH, (ii) /BRN= 1071541/, benzene,; Multistep reaction; |