Product Name

  • Name

    4-Mercaptophenylboronic acid

  • EINECS
  • CAS No. 237429-33-3
  • Article Data2
  • CAS DataBase
  • Density 1.27 g/cm3
  • Solubility
  • Melting Point >230 °C(lit.)
  • Formula C6H7BO2S
  • Boiling Point 329.4 °C at 760 mmHg
  • Molecular Weight 153.997
  • Flash Point 153 °C
  • Transport Information
  • Appearance
  • Safety 24/25
  • Risk Codes
  • Molecular Structure Molecular Structure of 237429-33-3 (4-Mercaptophenylboronic acid)
  • Hazard Symbols
  • Synonyms Boronicacid, (4-mercaptophenyl)- (9CI);(4-sulfanylphenyl)boronic acid;
  • PSA 79.26000
  • LogP -0.34490

Synthetic route

4-[(dimethyl-tert-butyl-silyl)thio]-phenylboronic acid
237429-34-4

4-[(dimethyl-tert-butyl-silyl)thio]-phenylboronic acid

4-mercaptophenylboronic acid
237429-33-3

4-mercaptophenylboronic acid

Conditions
ConditionsYield
With trifluoroacetic acid In dichloromethane desilylation;88%
trifluoroacetic acid
76-05-1

trifluoroacetic acid

4-[(dimethyl-tert-butyl-silyl)thio]-phenylboronic acid
237429-34-4

4-[(dimethyl-tert-butyl-silyl)thio]-phenylboronic acid

4-mercaptophenylboronic acid
237429-33-3

4-mercaptophenylboronic acid

Conditions
ConditionsYield
In dichloromethane equimolar amts., stirring overnight; evapn. (reduced pressure), crystn. (water);88%
para-bromobenzenethiol
106-53-6

para-bromobenzenethiol

4-mercaptophenylboronic acid
237429-33-3

4-mercaptophenylboronic acid

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: 92 percent / sodium hydride in oil / tetrahydrofuran / 14 h / 20 °C
2.1: n-butyl lithium / tetrahydrofuran; hexane / 0.25 h / -78 °C
2.2: 77 percent / tri-isopropyl borate / tetrahydrofuran / 4 h / -78 - -20 °C
3.1: 88 percent / trifluoroacetic acid / CH2Cl2
View Scheme
(4-bromophenylsulfanyl)-tert-butyldimethylsilane
153312-70-0

(4-bromophenylsulfanyl)-tert-butyldimethylsilane

4-mercaptophenylboronic acid
237429-33-3

4-mercaptophenylboronic acid

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: n-butyl lithium / tetrahydrofuran; hexane / 0.25 h / -78 °C
1.2: 77 percent / tri-isopropyl borate / tetrahydrofuran / 4 h / -78 - -20 °C
2.1: 88 percent / trifluoroacetic acid / CH2Cl2
View Scheme
C10H13BOS

C10H13BOS

4-mercaptophenylboronic acid
237429-33-3

4-mercaptophenylboronic acid

Conditions
ConditionsYield
With sodium hydroxide In water pH=11 - 12; Large scale;1.93 kg
2,3-dimethyl-2,3-butane diol
76-09-5

2,3-dimethyl-2,3-butane diol

4-mercaptophenylboronic acid
237429-33-3

4-mercaptophenylboronic acid

4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzenethiol
1029438-23-0

4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzenethiol

Conditions
ConditionsYield
With sodium sulfate at 20℃; for 16h; Inert atmosphere;100%
With magnesium sulfate In diethyl ether at 20℃;98%
With magnesium sulfate In cyclohexane at 20℃;98%
ethyl bromoacetate
105-36-2

ethyl bromoacetate

4-mercaptophenylboronic acid
237429-33-3

4-mercaptophenylboronic acid

{4-[(2-ethoxy-2-oxoethyl)thio]phenyl}boronic acid
1211474-17-7

{4-[(2-ethoxy-2-oxoethyl)thio]phenyl}boronic acid

Conditions
ConditionsYield
With potassium carbonate; sodium iodide In acetonitrile at 20℃; for 18h;100%
triphenylmethyl alcohol
76-84-6

triphenylmethyl alcohol

4-mercaptophenylboronic acid
237429-33-3

4-mercaptophenylboronic acid

4-(tritylsulfanyl)phenylboronic acid
1310810-82-2

4-(tritylsulfanyl)phenylboronic acid

Conditions
ConditionsYield
With trifluoroacetic acid In dichloromethane at 20℃; for 1h;95%
N'-(cyclohexylmethyl)-N'-((1R,2S,E)-1-hydroxy-1,4-diphenylbut-3-en-2-yl)-4-methoxybenzohydrazide

N'-(cyclohexylmethyl)-N'-((1R,2S,E)-1-hydroxy-1,4-diphenylbut-3-en-2-yl)-4-methoxybenzohydrazide

4-mercaptophenylboronic acid
237429-33-3

4-mercaptophenylboronic acid

4-((7S,8R,Z)-6-(cyclohexylmethyl)-4-(4-methoxyphenyl)-8-phenyl-7-((E)-styryl)-7,8-dihydro-6H-1,3,5,6,2-dioxadiazaborocin-2-yl)benzenethiol

4-((7S,8R,Z)-6-(cyclohexylmethyl)-4-(4-methoxyphenyl)-8-phenyl-7-((E)-styryl)-7,8-dihydro-6H-1,3,5,6,2-dioxadiazaborocin-2-yl)benzenethiol

Conditions
ConditionsYield
In dichloromethane at 40℃; for 0.5h;95%
rac-3-sulfanylpropane-1,2-diol
96-27-5

rac-3-sulfanylpropane-1,2-diol

4-mercaptophenylboronic acid
237429-33-3

4-mercaptophenylboronic acid

C9H11BO2S2

C9H11BO2S2

Conditions
ConditionsYield
In toluene at 20℃; for 24h; Molecular sieve; Glovebox;94.8%
C14H15BrN2O3S3
1260364-42-8

C14H15BrN2O3S3

4-mercaptophenylboronic acid
237429-33-3

4-mercaptophenylboronic acid

C20H20N2O3S4
1260364-52-0

C20H20N2O3S4

Conditions
ConditionsYield
With tetrakis(triphenylphosphine) palladium(0); potassium carbonate In water; acetonitrile at 100℃; Suzuki coupling; Microwave irradiation;88%
4-mercaptophenylboronic acid
237429-33-3

4-mercaptophenylboronic acid

d,l-(4,6-diphenyl-2-(4-mercaptophenyl))-1,3,2-dioxaborinane

d,l-(4,6-diphenyl-2-(4-mercaptophenyl))-1,3,2-dioxaborinane

Conditions
ConditionsYield
In tetrahydrofuran for 0.5h; Esterification;86%
In tetrahydrofuran equimolar amts., stirring for 30 min; drying (Na2SO4), filtration, evapn., chromy. (SiO2, CH2Cl2);86%
N-Methyldiethanolamine
105-59-9

N-Methyldiethanolamine

4-mercaptophenylboronic acid
237429-33-3

4-mercaptophenylboronic acid

2-(4-mercaptophenyl)-6-methyl-1,3,6,2-dioxaazaborocane

2-(4-mercaptophenyl)-6-methyl-1,3,6,2-dioxaazaborocane

Conditions
ConditionsYield
In tetrahydrofuran for 0.5h; Esterification;85%
N-Methyldiethanolamine
105-59-9

N-Methyldiethanolamine

4-mercaptophenylboronic acid
237429-33-3

4-mercaptophenylboronic acid

2-(4-mercaptophenyl)-6-methyl-1,3,6,2-dioxaazaborocane
237429-36-6

2-(4-mercaptophenyl)-6-methyl-1,3,6,2-dioxaazaborocane

Conditions
ConditionsYield
In tetrahydrofuran 1.1 equiv. of amine, stirring for 30 min; Et2O addn., washing (water), drying (Na2SO4), evapn.;85%
3-bromopropanol methyl ether
36865-41-5

3-bromopropanol methyl ether

4-mercaptophenylboronic acid
237429-33-3

4-mercaptophenylboronic acid

(4-{[3-(methoxy)propyl]thio}phenyl)boronic acid
1032825-16-3

(4-{[3-(methoxy)propyl]thio}phenyl)boronic acid

Conditions
ConditionsYield
With potassium carbonate; sodium iodide In acetonitrile at 20℃;81%
bromoacetic acid tert-butyl ester
5292-43-3

bromoacetic acid tert-butyl ester

4-mercaptophenylboronic acid
237429-33-3

4-mercaptophenylboronic acid

4-(((butyloxycarbonyl)methyl)thio)phenylboronic acid
237429-41-3

4-(((butyloxycarbonyl)methyl)thio)phenylboronic acid

Conditions
ConditionsYield
With potassium carbonate; sodium iodide In acetonitrile for 20h; Alkylation;71%
With potassium carbonate; sodium iodide In acetonitrile 1.5 equiv. of K2CO3 and t-BuO2CCH2Br, 0.15 equiv. NaI, stirring for 20 h; evapn. (reduced pressure), water addn., extn. into CH2Cl2, washing (water), drying (Na2SO4), chromy. (SiO2, 2% MeOH in CH2Cl2);71%
[Pt(2,2':6',2''-terpyridine)(acetonitrile)](nitrate)2

[Pt(2,2':6',2''-terpyridine)(acetonitrile)](nitrate)2

4-mercaptophenylboronic acid
237429-33-3

4-mercaptophenylboronic acid

(2,2':6',2''-terpyridine)(4-mercaptophenylboronic acid(1-))platinum(II) nitrate

(2,2':6',2''-terpyridine)(4-mercaptophenylboronic acid(1-))platinum(II) nitrate

Conditions
ConditionsYield
In N,N-dimethyl-formamide addn. of DMF soln. of pyridine deriv. to DMF soln. of palladium compd., stirring at room temp. for 1 h; ppn. with diethyl ether, centrifugation, washing with diethyl ether, elem. anal.;63%
bis(acetonitrile)decacarbonyltriosmium
61817-93-4, 146143-79-5, 871132-66-0

bis(acetonitrile)decacarbonyltriosmium

4-mercaptophenylboronic acid
237429-33-3

4-mercaptophenylboronic acid

C16H7BO12Os3S

C16H7BO12Os3S

Conditions
ConditionsYield
In tetrahydrofuran at 20℃;63%
4-mercaptophenylboronic acid
237429-33-3

4-mercaptophenylboronic acid

methyl iodide
74-88-4

methyl iodide

(4-thiomethoxyphenyl)boronic acid
98546-51-1

(4-thiomethoxyphenyl)boronic acid

Conditions
ConditionsYield
With potassium carbonate In acetonitrile Methylation;61%
With potassium carbonate In acetonitrile excess of MeI, stirring overnight; water addn., extn. into CH2Cl2, washing (water), drying (Na2SO4), evapn. (reduced pressure), recrystn. (Et2O);61%
2-bromo-5-(3-methoxyphenyl)thiophene
1078734-14-1

2-bromo-5-(3-methoxyphenyl)thiophene

4-mercaptophenylboronic acid
237429-33-3

4-mercaptophenylboronic acid

4-[5-(3-methoxyphenyl)-2-thienyl]benzenethiol
1193525-23-3

4-[5-(3-methoxyphenyl)-2-thienyl]benzenethiol

Conditions
ConditionsYield
With tetrakis(triphenylphosphine) palladium(0); caesium carbonate In 1,2-dimethoxyethane; ethanol; water at 150℃; under 11251.1 Torr; for 0.25h; Suzuki coupling; Microwave irradiation;61%
1-(2-chloroethyl)-N,N-dimethylpiperidin-4-amine

1-(2-chloroethyl)-N,N-dimethylpiperidin-4-amine

4-mercaptophenylboronic acid
237429-33-3

4-mercaptophenylboronic acid

[4-({2-[4-(dimethylamino)piperidin-1-yl]ethyl}thio)phenyl]boronic acid

[4-({2-[4-(dimethylamino)piperidin-1-yl]ethyl}thio)phenyl]boronic acid

Conditions
ConditionsYield
With caesium carbonate In tetrahydrofuran at 130℃; for 6h; Microwave irradiation;53%
bromo-acetic acid amide
683-57-8

bromo-acetic acid amide

4-mercaptophenylboronic acid
237429-33-3

4-mercaptophenylboronic acid

{4-[(2-amino-2-oxoethyl)thio]phenyl}boronic acid
1032825-15-2

{4-[(2-amino-2-oxoethyl)thio]phenyl}boronic acid

Conditions
ConditionsYield
With potassium carbonate In acetonitrile at 20℃;49%
2-chloro-6-(1-oxo-[4-methoxyphenyl]methyl)pyrazine
850221-69-1

2-chloro-6-(1-oxo-[4-methoxyphenyl]methyl)pyrazine

4-mercaptophenylboronic acid
237429-33-3

4-mercaptophenylboronic acid

6-(4-mercaptophenyl)-2-((4-methoxyphenyl)carbonyl)pyrazine
1149759-63-6

6-(4-mercaptophenyl)-2-((4-methoxyphenyl)carbonyl)pyrazine

Conditions
ConditionsYield
With tetrakis(triphenylphosphine) palladium(0); potassium carbonate In 1,4-dioxane; water for 5h; Suzuki-Miyaura cross-coupling; Inert atmosphere; Reflux;43%
3-cyanopropyl(dimethyl)(vinyl)silane
954114-30-8

3-cyanopropyl(dimethyl)(vinyl)silane

4-mercaptophenylboronic acid
237429-33-3

4-mercaptophenylboronic acid

[4-({2-[(3-cyanopropyl)dimethylsilyl]ethyl}thio)phenyl]boronic acid

[4-({2-[(3-cyanopropyl)dimethylsilyl]ethyl}thio)phenyl]boronic acid

Conditions
ConditionsYield
With di-tert-butyl peroxide at 100℃; for 6h; Inert atmosphere; Sealed tube;43%
N,N'-thiobisphthalimide
7764-29-6

N,N'-thiobisphthalimide

4-mercaptophenylboronic acid
237429-33-3

4-mercaptophenylboronic acid

C14H10BNO4S2

C14H10BNO4S2

Conditions
ConditionsYield
In 1,2-dichloro-ethane at 80℃;42%
4-(chloromethyl)-3-(2,6-dichlorophenyl)-5-(propan-2-yl)-1,2-oxazole
700835-81-0

4-(chloromethyl)-3-(2,6-dichlorophenyl)-5-(propan-2-yl)-1,2-oxazole

4-mercaptophenylboronic acid
237429-33-3

4-mercaptophenylboronic acid

[4-({[3-(2,6-dichlorophenyl)-5-(1-methylethyl)-4-isoxazolyl]methyl}thio)phenyl]boronic acid
1020577-19-8

[4-({[3-(2,6-dichlorophenyl)-5-(1-methylethyl)-4-isoxazolyl]methyl}thio)phenyl]boronic acid

Conditions
ConditionsYield
With caesium carbonate In N,N-dimethyl-formamide at 60℃; for 24h;
4-mercaptophenylboronic acid
237429-33-3

4-mercaptophenylboronic acid

4-((carboxymethyl)thio)phenylboronic acid

4-((carboxymethyl)thio)phenylboronic acid

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: 85 percent / tetrahydrofuran / 0.5 h
2: 65 percent / potassium carbonate; sodium iodide / acetonitrile / 20 h
3: 80 percent / trifluoroacetic acid / CH2Cl2
View Scheme
Multi-step reaction with 2 steps
1: 71 percent / potassium carbonate; sodium iodide / acetonitrile / 20 h
2: 80 percent / trifluoroacetic acid / CH2Cl2
View Scheme
4-mercaptophenylboronic acid
237429-33-3

4-mercaptophenylboronic acid

2-(4-(t-butyloxycarbonylmethylthiophenyl))-6-methyl-1,3,6,2-dioxaazaborocane

2-(4-(t-butyloxycarbonylmethylthiophenyl))-6-methyl-1,3,6,2-dioxaazaborocane

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 85 percent / tetrahydrofuran / 0.5 h
2: 65 percent / potassium carbonate; sodium iodide / acetonitrile / 20 h
View Scheme
4-mercaptophenylboronic acid
237429-33-3

4-mercaptophenylboronic acid

2-(4-carboxymethylthiophenyl)-4,6-diphenyl-1,3,2-dioxaborinane

2-(4-carboxymethylthiophenyl)-4,6-diphenyl-1,3,2-dioxaborinane

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: 86 percent / tetrahydrofuran / 0.5 h
2: 70 percent / potassium carbonate; sodium iodide / acetonitrile / 20 h
3: 54 percent / trifluoroacetic acid / CH2Cl2 / 2 h
View Scheme
4-mercaptophenylboronic acid
237429-33-3

4-mercaptophenylboronic acid

d,l-2-(4-(t-butyloxycarbonylmethylthiophenyl))-4,6-diphenyl-1,3,2-dioxaborinane

d,l-2-(4-(t-butyloxycarbonylmethylthiophenyl))-4,6-diphenyl-1,3,2-dioxaborinane

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 86 percent / tetrahydrofuran / 0.5 h
2: 70 percent / potassium carbonate; sodium iodide / acetonitrile / 20 h
View Scheme
4,4'-Dimethoxybenzhydrol
728-87-0

4,4'-Dimethoxybenzhydrol

4-mercaptophenylboronic acid
237429-33-3

4-mercaptophenylboronic acid

4-(4,4'-dimethoxybenzhydryl)thiophenylboronic acid
945244-19-9

4-(4,4'-dimethoxybenzhydryl)thiophenylboronic acid

Conditions
ConditionsYield
With acetic acid at 60℃; for 1h;
In acetic acid at 60℃; for 1h;
In acetic acid
With acetic acid at 60℃; for 1h;

4-Mercaptophenylboronic acid Specification

The Boronic acid,B-(4-mercaptophenyl)-, with the CAS registry number 237429-33-3, has the systematic name of (4-sulfanylphenyl)boronic acid. It belongs to the following product categories: Benzene Series; Boronic Acid; Aryl; Boronic Acids; Boronic Acids and Derivatives; Boronic Acids. And the molecular formula of the chemical is C6H7BO2S.

The characteristics of Boronic acid,B-(4-mercaptophenyl)- are as followings: (1)ACD/LogP: 1.89; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 1.75; (4)ACD/LogD (pH 7.4): 0.39; (5)ACD/BCF (pH 5.5): 11.58; (6)ACD/BCF (pH 7.4): 1; (7)ACD/KOC (pH 5.5): 182.9; (8)ACD/KOC (pH 7.4): 7.95; (9)#H bond acceptors: 2; (10)#H bond donors: 2; (11)#Freely Rotating Bonds: 4; (12)Polar Surface Area: 43.76 Å2; (13)Index of Refraction: 1.594; (14)Molar Refractivity: 41.13 cm3; (15)Molar Volume: 121.1 cm3; (16)Polarizability: 16.3×10-24cm3; (17)Surface Tension: 50.5 dyne/cm; (18)Density: 1.27 g/cm3; (19)Flash Point: 153 °C; (20)Enthalpy of Vaporization: 60.36 kJ/mol; (21)Boiling Point: 329.4 °C at 760 mmHg; (22)Vapour Pressure: 7.17E-05 mmHg at 25°C. 
   
Addtionally, the following datas could be converted into the molecular structure:
(1)SMILES: OB(O)c1ccc(S)cc1
(2)InChI: InChI=1/C6H7BO2S/c8-7(9)5-1-3-6(10)4-2-5/h1-4,8-10H
(3)InChIKey: AUVSUPMVIZXUOG-UHFFFAOYAO

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