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4-(TRIMETHYLSILYLETHYNYL)BENZYL ALCOHOL

CAS No.
275386-60-2
Chemical Name:
4-(TRIMETHYLSILYLETHYNYL)BENZYL ALCOHOL
Synonyms
4-(Trimethylsilylethynyl)benzyl alcohol 97%;4-((2-Trimethylsilyl)ethynyl)benzyl alcohol;(4-((TriMethylsilyl)ethynyl)phenyl)Methanol;4-[2-(Trimethylsilyl)ethynyl]benzenemethanol;[4-(2-Trimethylsilylethynyl)Phenyl] Methanol;Benzenemethanol, 4-[2-(trimethylsilyl)ethynyl]-;4-(Trimethylsilylethynyl)benzyl alcohol;(4-((Trimethylsilyl)ethynyl)phenyl)methanol - [T56112]
CBNumber:
CB8972693
Molecular Formula:
C12H16OSi
Molecular Weight:
204.34
MDL Number:
MFCD08457640
MOL File:
275386-60-2.mol
Last updated:2026-01-13 11:26:29
Product description Number Pack Size Price
4-(Trimethylsilylethynyl)benzyl alcohol 97% 668273 5g $283
(4-((Trimethylsilyl)ethynyl)phenyl)methanol T899813 100mg $75
4-[2-(Trimethylsilyl)ethynyl]benzenemethanol 95% AS88728 1g $129
(4-((Trimethylsilyl)ethynyl)phenyl)methanol 95+% T56112 1g $50
(4-((Trimethylsilyl)ethynyl)phenyl)methanol 95+% T56112 100mg $15
More product size

4-(TRIMETHYLSILYLETHYNYL)BENZYL ALCOHOL Properties

Melting point 68-72 °C
Boiling point 274.6±32.0 °C(Predicted)
Density 0.99±0.1 g/cm3(Predicted)
storage temp. 2-8°C
form solid
pka 14.46±0.10(Predicted)
Appearance Light brown to brown Solid
InChI 1S/C12H16OSi/c1-14(2,3)9-8-11-4-6-12(10-13)7-5-11/h4-7,13H,10H2,1-3H3
InChIKey WBNXRSFSSANBSA-UHFFFAOYSA-N
SMILES C[Si](C)(C)C#Cc1ccc(CO)cc1
UNSPSC Code 12352100
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS07
Signal word  Warning
Hazard statements  H302
Precautionary statements  P280-P305+P351+P338
WGK Germany  3
Storage Class 11 - Combustible Solids

4-(TRIMETHYLSILYLETHYNYL)BENZYL ALCOHOL price More Price(26)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 668273 4-(Trimethylsilylethynyl)benzyl alcohol 97% 275386-60-2 5g $283 2025-07-31 Buy
TRC T899813 (4-((Trimethylsilyl)ethynyl)phenyl)methanol 275386-60-2 100mg $75 2021-12-16 Buy
Activate Scientific AS88728 4-[2-(Trimethylsilyl)ethynyl]benzenemethanol 95% 275386-60-2 1g $129 2021-12-16 Buy
Synthonix T56112 (4-((Trimethylsilyl)ethynyl)phenyl)methanol 95+% 275386-60-2 1g $50 2021-12-16 Buy
Synthonix T56112 (4-((Trimethylsilyl)ethynyl)phenyl)methanol 95+% 275386-60-2 100mg $15 2021-12-16 Buy
Product number Packaging Price Buy
668273 5g $283 Buy
T899813 100mg $75 Buy
AS88728 1g $129 Buy
T56112 1g $50 Buy
T56112 100mg $15 Buy

4-(TRIMETHYLSILYLETHYNYL)BENZYL ALCOHOL Chemical Properties,Uses,Production

Synthesis

4-Bromobenzyl alcohol

873-75-6

Trimethylsilylacetylene

1066-54-2

4-(TRIMETHYLSILYLETHYNYL)BENZYL ALCOHOL

275386-60-2

GENERAL STEPS: To an anhydrous triethylamine (TEA) solution of 4-bromobenzyl alcohol (935 mg, 5 mmol) was sequentially added dichlorobis(triphenylphosphine)palladium(II) (Pd(PPh3)2Cl2, 175 mg, 0.25 mmol), cuprous iodide (CuI, 48 mg, 0.25 mmol) and tri-tert-butylphosphine (P(t-Bu)3, 51 mg. 0.25 mmol) and stirred for 5 min under nitrogen (N2) protection. Subsequently, trimethylsilylacetylene (980 mg, 10 mmol) was added slowly and dropwise. The reaction mixture was placed in a microwave reactor and heated at 130 °C for 4 hours. After completion of the reaction, it was cooled to room temperature and filtered through diatomaceous earth. The filtrate was concentrated under reduced pressure and the residue was extracted three times with ethyl acetate (EtOAc) and water (H2O). The organic layers were combined, washed with saturated saline, dried over anhydrous sodium sulfate (Na2SO4), and then purified by silica gel column chromatography (petroleum ether/ethyl acetate, 4:1) to afford 4-(trimethylsilylethynyl)benzylmethanol (670 mg, 66%) as a brown oil. To a solution of 4-(trimethylsilylethynyl)benzylmethanol (250 mg, 1.23 mmol) in tetrahydrofuran (THF) was added tetrabutylammonium fluoride (TBAF, 500 mg, 2.45 mmol) in batches. The reaction mixture was stirred at 0 °C, gradually warmed to room temperature and continued stirring for 3 hours. After completion of the reaction, the solvent was removed under reduced pressure and the residue was extracted three times with ethyl acetate (EtOAc) and water (H2O). The organic layers were combined, washed with saturated saline, dried over anhydrous sodium sulfate (Na2SO4), and then purified by silica gel column chromatography (petroleum ether/ethyl acetate, 4:1) to afford 4-ethynylbenzylmethanol (170 mg, 100%) as a brown oil.1H NMR (400 MHz, CDCl3) δ 7.45-7.49 (m, 2H), 7.21- 7.26 (m, 2H), 4.69 (s, 1H), 4.65 (s, 2H).

References

[1] Chemistry - A European Journal, 2017, vol. 23, # 50, p. 12190 - 12197
[2] Synthesis (Germany), 2014, vol. 46, # 3, p. 348 - 356
[3] Angewandte Chemie - International Edition, 2004, vol. 43, # 29, p. 3814 - 3818
[4] Patent: WO2018/14802, 2018, A1. Location in patent: Paragraph 0364
[5] Chemistry - A European Journal, 2013, vol. 19, # 29, p. 9452 - 9456

77123-57-0
275386-60-2
Synthesis of 4-(TRIMETHYLSILYLETHYNYL)BENZYL ALCOHOL from 4-(Trimethylsilyl)ethynylbenzaldehyde
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4-(TRIMETHYLSILYLETHYNYL)BENZYL ALCOHOL Spectrum

(4-((TriMethylsilyl)ethynyl)phenyl)Methanol 4-((2-Trimethylsilyl)ethynyl)benzyl alcohol 4-(Trimethylsilylethynyl)benzyl alcohol 97% [4-(2-Trimethylsilylethynyl)Phenyl] Methanol 4-[2-(Trimethylsilyl)ethynyl]benzenemethanol Benzenemethanol, 4-[2-(trimethylsilyl)ethynyl]- 4-(Trimethylsilylethynyl)benzyl alcohol (4-((Trimethylsilyl)ethynyl)phenyl)methanol - [T56112] 275386-60-2