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(TERT-BUTYLDIMETHYLSILYLOXY)ACETALDEHYDE

CAS No.
102191-92-4
Chemical Name:
(TERT-BUTYLDIMETHYLSILYLOXY)ACETALDEHYDE
Synonyms
2-(tert-butyldimethylsilyloxy)acetaldehyde;DK447;oxy)acetaL;DKFELEX0096;T-BUTYLDIMETHYLSILOXYACETALDEHYDE;T-BUTYLDIMETHYLSILYLOXYACETALDEHYDE;t-BUTYLDIMETHYLSILOXYACETALDEHYDE,90%;DIMETHYL-TERT-BUTYLSILYLOXYACETALDEHYDE;(TERT-BUTYLDIMETHYLSILYLOXY)ACETALDEHYDE;2-(Tert-Butyldimethylsiloxy)acetaldehyde
CBNumber:
CB6436993
Molecular Formula:
C8H18O2Si
Molecular Weight:
174.31
MDL Number:
MFCD01321229
MOL File:
102191-92-4.mol
MSDS File:
SDS
Last updated:2026-01-13 11:24:59
Product description Number Pack Size Price
(tert-Butyldimethylsilyloxy)acetaldehyde 90% 449458 1g $95.9
(tert-Butyldimethylsilyloxy)acetaldehyde 90% 449458 5g $375
2-[(tert-Butyldimethylsilyl)oxy]acetaldehyde min. 95.0 % B6269 1G $89
2-[(tert-Butyldimethylsilyl)oxy]acetaldehyde min. 95.0 % B6269 5G $270
(tert-​Butyldimethylsilylox​y)​acetaldehyde B942745 500mg $55
More product size

(TERT-BUTYLDIMETHYLSILYLOXY)ACETALDEHYDE Properties

Melting point 165-167 ºC
Boiling point 165-167 °C(lit.)
Density 0.915 g/mL at 25 °C(lit.)
refractive index n20/D 1.432(lit.)
Flash point 140 °F
storage temp. 2-8°C
form Powder
color White to light beige to grey
Specific Gravity 0.915
Hydrolytic Sensitivity 8: reacts rapidly with moisture, water, protic solvents
InChI InChI=1S/C8H18O2Si/c1-8(2,3)11(4,5)10-7-6-9/h6H,7H2,1-5H3
InChIKey MEBFFOKESLAUSJ-UHFFFAOYSA-N
SMILES C(=O)CO[Si](C(C)(C)C)(C)C
UNSPSC Code 12352100
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictogramsGHS hazard pictograms
GHS02,GHS07
Signal word  Warning
Hazard statements  H226-H315-H319-H335
Precautionary statements  P210-P233-P240-P241-P303+P361+P353-P305+P351+P338
target organs Respiratory system
PPE Eyeshields, Gloves, type ABEK (EN14387) respirator filter
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  26-36
RIDADR  UN 1989 3/PG 3
WGK Germany  3
TSCA  No
HazardClass  3
HS Code  29319090
Storage Class 3 - Flammable liquids
Hazard Classifications Eye Irrit. 2
Flam. Liq. 3
Skin Irrit. 2
STOT SE 3
Limited Quantities 5.0 L (1.3 gallons) (liquid)
Excepted Quantities Max Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L)

(TERT-BUTYLDIMETHYLSILYLOXY)ACETALDEHYDE price More Price(23)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 449458 (tert-Butyldimethylsilyloxy)acetaldehyde 90% 102191-92-4 1g $95.9 2025-07-31 Buy
Sigma-Aldrich 449458 (tert-Butyldimethylsilyloxy)acetaldehyde 90% 102191-92-4 5g $375 2025-07-31 Buy
TCI Chemical B6269 2-[(tert-Butyldimethylsilyl)oxy]acetaldehyde min. 95.0 % 102191-92-4 1G $89 2025-07-31 Buy
TCI Chemical B6269 2-[(tert-Butyldimethylsilyl)oxy]acetaldehyde min. 95.0 % 102191-92-4 5G $270 2025-07-31 Buy
TRC B942745 (tert-​Butyldimethylsilylox​y)​acetaldehyde 102191-92-4 500mg $55 2021-12-16 Buy
Product number Packaging Price Buy
449458 1g $95.9 Buy
449458 5g $375 Buy
B6269 1G $89 Buy
B6269 5G $270 Buy
B942745 500mg $55 Buy

(TERT-BUTYLDIMETHYLSILYLOXY)ACETALDEHYDE Chemical Properties,Uses,Production

Chemical Properties

Clear colorless to straw colored liquid

Uses

Employed in the construction of the key tetrahydropyran subunit in a recent synthesis of the marine natural product (–)-dactylodide.

Synthesis

(TERT.-BUTYLDIMETHYLSILYLOXY)ETHANOL

102229-10-7

(TERT-BUTYLDIMETHYLSILYLOXY)ACETALDEHYDE

102191-92-4

Oxalyl chloride (13.7 mL, 162.2 mmol) was dissolved in anhydrous dichloromethane (400 mL) under nitrogen protection and cooled to -78°C. Dimethyl sulfoxide (25.1 mL, 353.9 mmol) was added slowly and stirred for 30 minutes. Subsequently, a solution of 2-((tert-butyldimethylsilyl)oxy)ethanol (26.0 g, 147.5 mmol) in anhydrous dichloromethane (100 mL) was added dropwise. After maintaining -78 °C and continuing to stir for 30 min, triethylamine (102.74 mL, 737.0 mmol) was added slowly and dropwise. The reaction mixture was stirred at -78 °C for another 30 min, then gradually warmed up to room temperature and continued stirring for 1 h. The reaction mixture was then stirred at -78 °C for 1 h. The reaction mixture was then gradually warmed up to room temperature. The pH of the reaction mixture was adjusted to 4 with aqueous 2N hydrochloric acid and then extracted with dichloromethane (3 x 400 mL). The organic layers were combined, dried with anhydrous sodium sulfate, filtered and concentrated under reduced pressure to give 2-((tert-butyldimethylsilyl)oxy)acetaldehyde (34.0 g, 100%) as a colorless oil. The product can be used directly in the subsequent reaction without further purification.

References

[1] Organic Letters, 2016, vol. 18, # 18, p. 4534 - 4537
[2] Patent: WO2017/24018, 2017, A1. Location in patent: Paragraph 00132
[3] Patent: US2016/122345, 2016, A1. Location in patent: Paragraph 0115; 0118
[4] Patent: US9481674, 2016, B1. Location in patent: Page/Page column 47; 48
[5] Patent: WO2017/87608, 2017, A1. Location in patent: Paragraph 00125; 00128

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View Lastest Price from (TERT-BUTYLDIMETHYLSILYLOXY)ACETALDEHYDE manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
(TERT-BUTYLDIMETHYLSILYLOXY)ACETALDEHYDE pictures 2025-07-02 (TERT-BUTYLDIMETHYLSILYLOXY)ACETALDEHYDE
102191-92-4
US $0.00 / KG 1KG 98% 1000KG /month Shanghai Daken Advanced Materials Co.,Ltd
(tert-Butyldimethylsilyloxy)acetaldehyde pictures 2021-07-02 (tert-Butyldimethylsilyloxy)acetaldehyde
102191-92-4
US $15.00-10.00 / KG 1KG 99%+ HPLC Monthly supply of 1 ton Zhuozhou Wenxi import and Export Co., Ltd
(TERT-BUTYLDIMETHYLSILYLOXY)ACETALDEHYDE pictures 2019-12-27 (TERT-BUTYLDIMETHYLSILYLOXY)ACETALDEHYDE
102191-92-4
US $1.00 / KG 1KG 99% 200kg Career Henan Chemical Co

(TERT-BUTYLDIMETHYLSILYLOXY)ACETALDEHYDE Spectrum

(tert-ButyldiMethylsilyloxy)acetaldehyde (tert-ButyldiMethylsilyloxy)acetaldehyde 90% (tert-Butyldimethylsiloxy)acetaldehyde,90% 2-(tert-butyldimethylsilyloxy)acetaldehyde Acetaldehyde,2-[[(1,1-dimethylethyl)dimethylsilyl]oxy]- (tert-Butyl-dimethyl-silanyloxy)-acetaldehyde 2-(Tert-Butyldimethylsiloxy)acetaldehyde (TERT-BUTYLDIMETHYLSILYLOXY)ACETALDEHYDE T-BUTYLDIMETHYLSILOXYACETALDEHYDE T-BUTYLDIMETHYLSILYLOXYACETALDEHYDE (TERT-BUTYLDIMETHYLSILYLOXY)ACETALDEHYDE,97% DIMETHYL-TERT-BUTYLSILYLOXYACETALDEHYDE t-BUTYLDIMETHYLSILOXYACETALDEHYDE,90% {[Dimethyl(2-methyl-2-propanyl)silyl]oxy}acetaldehyde tert-butyl-(2-methyl-1-oxopropan-2-yl)oxysilicon oxy)acetaL DK447 DKFELEX0096 (tert-Butyldimethylsilyloxy)acetaldehyde 102191-92-4 CH33CSiCH32OCH2CHO Organic Building Blocks C8 Carbonyl Compounds Aldehydes Building Blocks Pyridines ,Halogenated Heterocycles Aldehydes C8 Carbonyl Compounds