Product Name

  • Name

    2-Pentanone, 5-(acetyloxy)-3-mercapto-

  • EINECS
  • CAS No. 55289-66-2
  • Article Data5
  • CAS DataBase
  • Density 1.107±0.06 g/cm3 (20 oC 760 Torr), Calc.*
  • Solubility Slightly soluble (7.6 g/L) (25 oC), Calc.*
  • Melting Point 176.23300
  • Formula C7H12O3S
  • Boiling Point
  • Molecular Weight 176.236
  • Flash Point
  • Transport Information
  • Appearance
  • Safety
  • Risk Codes
  • Molecular Structure Molecular Structure of 55289-66-2 (2-Pentanone, 5-(acetyloxy)-3-mercapto-)
  • Hazard Symbols
  • Synonyms 5-acetoxy-3-mercapto-pentan-2-one;3-Mercapto-4-oxopentyl Acetate;5-Acetoxy-3-mercapto-pentan-2-on;3-Acetyl-3-mercapto-propylacetat;2-Pentanone,5-(acetyloxy)-3-mercapto;
  • PSA 82.17000
  • LogP 0.82700

Synthetic route

5-Acetoxy-3-chloropentan-2-one
13051-49-5

5-Acetoxy-3-chloropentan-2-one

3-Mercapto-4-oxopentyl Acetate
55289-66-2

3-Mercapto-4-oxopentyl Acetate

Conditions
ConditionsYield
With potassium hydrosulfide In methanol for 1h; Ambient temperature;73.5%
With sodium hydrogen sulfide In methanol at 0 - 20℃; for 2h; Inert atmosphere;64%
With sodium hydrogensulfide In toluene at 10 - 20℃; for 1h;
bis-(3-acetoxy-1-acetyl-propyl)-disulfide
106590-76-5

bis-(3-acetoxy-1-acetyl-propyl)-disulfide

3-Mercapto-4-oxopentyl Acetate
55289-66-2

3-Mercapto-4-oxopentyl Acetate

Conditions
ConditionsYield
With acetic acid; zinc
3-chloro-5-acetoxy-pentanone-(2)

3-chloro-5-acetoxy-pentanone-(2)

3-Mercapto-4-oxopentyl Acetate
55289-66-2

3-Mercapto-4-oxopentyl Acetate

Conditions
ConditionsYield
With sodium hydrogensulfide
3-Mercapto-4-oxopentyl Acetate
55289-66-2

3-Mercapto-4-oxopentyl Acetate

[C2,C5-13C2]-7-methyl-3,4-dihydropyrimido[4,5-d]pyrimidine

[C2,C5-13C2]-7-methyl-3,4-dihydropyrimido[4,5-d]pyrimidine

[C2-13C]-3-(([C6-13C]-4-amino-2-methylpyrimidin-5-yl)methyl)-5-(2-hydroxyethyl)-4-methyl-3-thiazolium hydrochloride
1262424-81-6

[C2-13C]-3-(([C6-13C]-4-amino-2-methylpyrimidin-5-yl)methyl)-5-(2-hydroxyethyl)-4-methyl-3-thiazolium hydrochloride

Conditions
ConditionsYield
Stage #1: 3-Mercapto-4-oxopentyl Acetate; [C2,C5-13C2]-7-methyl-3,4-dihydropyrimido[4,5-d]pyrimidine With formic acid at 20 - 30℃; for 0.75h; Inert atmosphere;
Stage #2: With hydrogenchloride In ethanol at 20℃; for 0.75h; Kinetics; Inert atmosphere;
91.3%
3,4-Dihydro-7-methylpyrimido<4,5-d>pyrimidine
31375-19-6

3,4-Dihydro-7-methylpyrimido<4,5-d>pyrimidine

3-Mercapto-4-oxopentyl Acetate
55289-66-2

3-Mercapto-4-oxopentyl Acetate

Thiamine formate
130967-53-2

Thiamine formate

Conditions
ConditionsYield
With formic acid for 0.5h; Ambient temperature;89.3%
5-aminomethyl-2-ethyl-pyrimidin-4-ylamine
1886-36-8

5-aminomethyl-2-ethyl-pyrimidin-4-ylamine

3-Mercapto-4-oxopentyl Acetate
55289-66-2

3-Mercapto-4-oxopentyl Acetate

3-(2-ethyl-4-amino-pyrimidin-5-ylmethyl)-5-(2-hydroxy-ethyl)-4-methyl-thiazolium; chloride-hydrochloride
4102-72-1

3-(2-ethyl-4-amino-pyrimidin-5-ylmethyl)-5-(2-hydroxy-ethyl)-4-methyl-thiazolium; chloride-hydrochloride

5-aminomethyl-2-ethyl-pyrimidin-4-ylamine
1886-36-8

5-aminomethyl-2-ethyl-pyrimidin-4-ylamine

3-Mercapto-4-oxopentyl Acetate
55289-66-2

3-Mercapto-4-oxopentyl Acetate

3-(2-ethyl-4-amino-pyrimidin-5-ylmethyl)-5-(2-hydroxy-ethyl)-4-methyl-thiazolium; bromide hydrobromide
6309-04-2

3-(2-ethyl-4-amino-pyrimidin-5-ylmethyl)-5-(2-hydroxy-ethyl)-4-methyl-thiazolium; bromide hydrobromide

5-aminomethyl-2-ethyl-pyrimidin-4-ylamine
1886-36-8

5-aminomethyl-2-ethyl-pyrimidin-4-ylamine

3-Mercapto-4-oxopentyl Acetate
55289-66-2

3-Mercapto-4-oxopentyl Acetate

3-(2-ethyl-4-amino-pyrimidin-5-ylmethyl)-5-(2-hydroxy-ethyl)-4-methyl-thiazolium; picrate

3-(2-ethyl-4-amino-pyrimidin-5-ylmethyl)-5-(2-hydroxy-ethyl)-4-methyl-thiazolium; picrate

3-Mercapto-4-oxopentyl Acetate
55289-66-2

3-Mercapto-4-oxopentyl Acetate

bis-(3-acetoxy-1-acetyl-propyl)-disulfide
106590-76-5

bis-(3-acetoxy-1-acetyl-propyl)-disulfide

Conditions
ConditionsYield
With iodine
3-Mercapto-4-oxopentyl Acetate
55289-66-2

3-Mercapto-4-oxopentyl Acetate

(4-amino-2-methyl-pyrimidin-5-ylmethyl)-oxalamic acid
855395-82-3

(4-amino-2-methyl-pyrimidin-5-ylmethyl)-oxalamic acid

Aneurin
70-16-6

Aneurin

3-Mercapto-4-oxopentyl Acetate
55289-66-2

3-Mercapto-4-oxopentyl Acetate

acetonitrile
75-05-8

acetonitrile

2-(2,4-dimethylthiazol-5-yl)ethanol
2258-19-7

2-(2,4-dimethylthiazol-5-yl)ethanol

Conditions
ConditionsYield
With hydrogenchloride ueber 3-Acetimidoylmercapto-5-acetoxy-pentan-2-on-hydrochlorid;
3-Mercapto-4-oxopentyl Acetate
55289-66-2

3-Mercapto-4-oxopentyl Acetate

(2-ethyl-4-amino-pyrimidin-5-ylmethyl)-oxalamic acid
855395-83-4

(2-ethyl-4-amino-pyrimidin-5-ylmethyl)-oxalamic acid

3-(2-ethyl-4-amino-pyrimidin-5-ylmethyl)-5-(2-hydroxy-ethyl)-4-methyl-thiazolium; chloride-hydrochloride
4102-72-1

3-(2-ethyl-4-amino-pyrimidin-5-ylmethyl)-5-(2-hydroxy-ethyl)-4-methyl-thiazolium; chloride-hydrochloride

3-Mercapto-4-oxopentyl Acetate
55289-66-2

3-Mercapto-4-oxopentyl Acetate

(2-ethyl-4-amino-pyrimidin-5-ylmethyl)-oxalamic acid
855395-83-4

(2-ethyl-4-amino-pyrimidin-5-ylmethyl)-oxalamic acid

3-(2-ethyl-4-amino-pyrimidin-5-ylmethyl)-5-(2-hydroxy-ethyl)-4-methyl-thiazolium; bromide hydrobromide
6309-04-2

3-(2-ethyl-4-amino-pyrimidin-5-ylmethyl)-5-(2-hydroxy-ethyl)-4-methyl-thiazolium; bromide hydrobromide

3-Mercapto-4-oxopentyl Acetate
55289-66-2

3-Mercapto-4-oxopentyl Acetate

(2-ethyl-4-amino-pyrimidin-5-ylmethyl)-oxalamic acid
855395-83-4

(2-ethyl-4-amino-pyrimidin-5-ylmethyl)-oxalamic acid

3-(2-ethyl-4-amino-pyrimidin-5-ylmethyl)-5-(2-hydroxy-ethyl)-4-methyl-thiazolium; picrate

3-(2-ethyl-4-amino-pyrimidin-5-ylmethyl)-5-(2-hydroxy-ethyl)-4-methyl-thiazolium; picrate

3-Mercapto-4-oxopentyl Acetate
55289-66-2

3-Mercapto-4-oxopentyl Acetate

2-methyl-4-amino-5-formylaminomethylpyrimidine
1886-34-6

2-methyl-4-amino-5-formylaminomethylpyrimidine

Aneurin
70-16-6

Aneurin

3,4-Dihydro-7-methylpyrimido<4,5-d>pyrimidine
31375-19-6

3,4-Dihydro-7-methylpyrimido<4,5-d>pyrimidine

3-Mercapto-4-oxopentyl Acetate
55289-66-2

3-Mercapto-4-oxopentyl Acetate

Thiamine hydrochloride
67-03-8

Thiamine hydrochloride

Conditions
ConditionsYield
With hydrogenchloride; formic acid 1.) 30 min, RT, 2.) EtOH, 30 min, RT; Yield given. Multistep reaction;
3-Mercapto-4-oxopentyl Acetate
55289-66-2

3-Mercapto-4-oxopentyl Acetate

3,4-dihydro-5-deuterio-7-methylpyrimido[4,5-d]pyrimidine
177411-69-7

3,4-dihydro-5-deuterio-7-methylpyrimido[4,5-d]pyrimidine

C14H18(2)HN4O2S(1+)
177411-70-0

C14H18(2)HN4O2S(1+)

Conditions
ConditionsYield
With hydrogenchloride; ethanol 1.) formic acid, room temperature, 30 min, 2.) room temperature, 30 min; Multistep reaction;
3-Mercapto-4-oxopentyl Acetate
55289-66-2

3-Mercapto-4-oxopentyl Acetate

C7H7(2)HN4

C7H7(2)HN4

C14H18(2)HN4O2S(1+)

C14H18(2)HN4O2S(1+)

Conditions
ConditionsYield
With hydrogenchloride; ethanol 1.) formic acid, room temperature, 30 min, 2.) room temperature, 30 min; Multistep reaction;
hydrogenchloride
7647-01-0

hydrogenchloride

hydrogen cyanide
74-90-8

hydrogen cyanide

3-Mercapto-4-oxopentyl Acetate
55289-66-2

3-Mercapto-4-oxopentyl Acetate

benzene
71-43-2

benzene

5-hydroxyethyl-4-methylthiazole
137-00-8

5-hydroxyethyl-4-methylthiazole

Conditions
ConditionsYield
at 130℃;
hydrogenchloride
7647-01-0

hydrogenchloride

3-Mercapto-4-oxopentyl Acetate
55289-66-2

3-Mercapto-4-oxopentyl Acetate

acetonitrile
75-05-8

acetonitrile

2-(2,4-dimethylthiazol-5-yl)ethanol
2258-19-7

2-(2,4-dimethylthiazol-5-yl)ethanol

3-Mercapto-4-oxopentyl Acetate
55289-66-2

3-Mercapto-4-oxopentyl Acetate

N-<2-ethyl-4-amino-pyrimidin-5-yl>-formamide

N-<2-ethyl-4-amino-pyrimidin-5-yl>-formamide

3-(2-ethyl-4-amino-pyrimidin-5-ylmethyl)-5-(2-hydroxy-ethyl)-4-methyl-thiazolium; chloride-hydrochloride
4102-72-1

3-(2-ethyl-4-amino-pyrimidin-5-ylmethyl)-5-(2-hydroxy-ethyl)-4-methyl-thiazolium; chloride-hydrochloride

3-Mercapto-4-oxopentyl Acetate
55289-66-2

3-Mercapto-4-oxopentyl Acetate

N-<2-ethyl-4-amino-pyrimidin-5-yl>-formamide

N-<2-ethyl-4-amino-pyrimidin-5-yl>-formamide

3-(2-ethyl-4-amino-pyrimidin-5-ylmethyl)-5-(2-hydroxy-ethyl)-4-methyl-thiazolium; bromide hydrobromide
6309-04-2

3-(2-ethyl-4-amino-pyrimidin-5-ylmethyl)-5-(2-hydroxy-ethyl)-4-methyl-thiazolium; bromide hydrobromide

3-Mercapto-4-oxopentyl Acetate
55289-66-2

3-Mercapto-4-oxopentyl Acetate

N-<2-ethyl-4-amino-pyrimidin-5-yl>-formamide

N-<2-ethyl-4-amino-pyrimidin-5-yl>-formamide

3-(2-ethyl-4-amino-pyrimidin-5-ylmethyl)-5-(2-hydroxy-ethyl)-4-methyl-thiazolium; picrate

3-(2-ethyl-4-amino-pyrimidin-5-ylmethyl)-5-(2-hydroxy-ethyl)-4-methyl-thiazolium; picrate

3-Mercapto-4-oxopentyl Acetate
55289-66-2

3-Mercapto-4-oxopentyl Acetate

(R)-monodeuteriothiamin chloride hydrochloride

(R)-monodeuteriothiamin chloride hydrochloride

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 2.) HCl/EtOH / 1.) formic acid, room temperature, 30 min, 2.) room temperature, 30 min
2: aq. HCl / ethanol / 1.) 90 deg C, 2.) 4 deg C, overnight
View Scheme
3-Mercapto-4-oxopentyl Acetate
55289-66-2

3-Mercapto-4-oxopentyl Acetate

(S)-monodeuteriothiamin

(S)-monodeuteriothiamin

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 2.) HCl/EtOH / 1.) formic acid, room temperature, 30 min, 2.) room temperature, 30 min
2: aq. HCl / ethanol / 1.) 90 deg C, 2.) 4 deg C, overnight
View Scheme
ethyl 3-ethoxyacrylate
5941-55-9

ethyl 3-ethoxyacrylate

3-Mercapto-4-oxopentyl Acetate
55289-66-2

3-Mercapto-4-oxopentyl Acetate

C14H24O6S
1012795-36-6

C14H24O6S

Conditions
ConditionsYield
With lithium hexamethyldisilazane In toluene at 20℃; for 18h;
5-(aminomethyl)-2-methylpyrimidin-4-amine
95-02-3

5-(aminomethyl)-2-methylpyrimidin-4-amine

3-Mercapto-4-oxopentyl Acetate
55289-66-2

3-Mercapto-4-oxopentyl Acetate

A

C13H17N4O2S(1+)
1569026-98-7

C13H17N4O2S(1+)

B

Aneurin
70-16-6

Aneurin

C

O-acetylthiamine
130967-52-1

O-acetylthiamine

Conditions
ConditionsYield
Stage #1: 5-(aminomethyl)-2-methylpyrimidin-4-amine With formic acid Reflux; Inert atmosphere;
Stage #2: 3-Mercapto-4-oxopentyl Acetate Reflux; Overall yield = 78.0 %Chromat.;
A 60.3 %Chromat.
B 8.0 %Chromat.
C 9.7 %Chromat.
N-formylethylamine
627-45-2

N-formylethylamine

3-Mercapto-4-oxopentyl Acetate
55289-66-2

3-Mercapto-4-oxopentyl Acetate

A

C10H16NO2S(1+)
1569027-13-9

C10H16NO2S(1+)

B

C9H14NO2S(1+)
1569027-16-2

C9H14NO2S(1+)

Conditions
ConditionsYield
Stage #1: N-formylethylamine With formic acid Reflux; Inert atmosphere;
Stage #2: 3-Mercapto-4-oxopentyl Acetate Reflux; Overall yield = 29.6 %Chromat.;
A 20.5 %Chromat.
B 9.1 %Chromat.
3-Mercapto-4-oxopentyl Acetate
55289-66-2

3-Mercapto-4-oxopentyl Acetate

cyclohexylmethylamine
3218-02-8

cyclohexylmethylamine

A

C15H24NO2S(1+)
1569027-20-8

C15H24NO2S(1+)

B

C14H22NO2S(1+)
1569027-23-1

C14H22NO2S(1+)

Conditions
ConditionsYield
Stage #1: cyclohexylmethylamine With formic acid Reflux; Inert atmosphere;
Stage #2: 3-Mercapto-4-oxopentyl Acetate Reflux; Overall yield = 43.8 %Chromat.;
A 30.5 %Chromat.
B 12.3 %Chromat.
(2-aminomethylpyridine)
3731-51-9

(2-aminomethylpyridine)

3-Mercapto-4-oxopentyl Acetate
55289-66-2

3-Mercapto-4-oxopentyl Acetate

A

C12H15N2OS(1+)

C12H15N2OS(1+)

B

C14H17N2O2S(1+)
1569027-29-7

C14H17N2O2S(1+)

Conditions
ConditionsYield
Stage #1: 2-(Aminomethyl)pyridine With formic acid Reflux; Inert atmosphere;
Stage #2: 3-Mercapto-4-oxopentyl Acetate Reflux; Overall yield = 28.9 %Chromat.;
A 11.2 %Chromat.
B 14.3 %Chromat.
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