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77123-58-1 Usage

General Description

2-(trimethylsilyl)ethynylbenzaldehyde is a chemical compound that consists of a benzaldehyde group with an ethynyl substituent and a trimethylsilyl group attached to the ethynyl carbon. It is commonly used in organic synthesis as a versatile building block for the preparation of various functionalized compounds. Its trimethylsilyl group can be easily removed to reveal the terminal alkyne, which can undergo various reactions such as Sonogashira coupling, click chemistry, and alkyne metathesis. 2-(TRIMETHYLSILYL)ETHYNYLBENZALDEHYDE has applications in the pharmaceutical, agrochemical, and materials science industries, making it a valuable tool in the development of new compounds and materials.

Check Digit Verification of cas no

The CAS Registry Mumber 77123-58-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,1,2 and 3 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 77123-58:
131 % 10 = 1
So 77123-58-1 is a valid CAS Registry Number.

77123-58-1 Well-known Company Product Price

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  • Alfa Aesar

  • (H55309)  2-[(Trimethylsilyl)ethynyl]benzaldehyde, 97%   

  • 77123-58-1

  • 1g

  • 185.0CNY

  • Detail
  • Alfa Aesar

  • (H55309)  2-[(Trimethylsilyl)ethynyl]benzaldehyde, 97%   

  • 77123-58-1

  • 5g

  • 647.0CNY

  • Detail
  • Alfa Aesar

  • (H55309)  2-[(Trimethylsilyl)ethynyl]benzaldehyde, 97%   

  • 77123-58-1

  • 25g

  • 2412.0CNY

  • Detail



According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 18, 2017

Revision Date: Aug 18, 2017


1.1 GHS Product identifier

Product name 2-(2-trimethylsilylethynyl)benzaldehyde

1.2 Other means of identification

Product number -
Other names GL-0046

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:77123-58-1 SDS

77123-58-1Relevant articles and documents

Palladium-Catalyzed Aminomethylation and Cyclization of Enynol to O-Heterocycle Confined 1,3-Dienes

Yu, Houjian,Yu, Bangkui,Zhang, Haocheng,Huang, Hanmin

supporting information, p. 3891 - 3896 (2021/05/26)

The rational tuning of the electrophilicity of the allylpalladium intermediates enables the regioselectively intramolecular 1,2-addition of enynol in the presence of aminal. This aminomethylation and cyclization reaction via C-N bond activation and intramolecular nucleophilic addition provides a rare example for the synthesis of O-containing heterocycle-confined 1,3-dienes, which is of synthetic potential for further derivatization. The method possesses broad substrate generality as well as functional group compatibility and efficiently affords a wide range of desired products with 5-, 6-, and 8-membered O-containing heterocycles with various functional groups.

Gold Catalysis Meets Materials Science – A New Approach to π-Extended Indolocarbazoles

Hendrich, Christoph M.,Bongartz, Lukas M.,Hoffmann, Marvin T.,Zschieschang, Ute,Borchert, James W.,Sauter, Désirée,Kr?mer, Petra,Rominger, Frank,Mulks, Florian F.,Rudolph, Matthias,Dreuw, Andreas,Klauk, Hagen,Hashmi, A. Stephen K.

supporting information, p. 549 - 557 (2020/12/07)

Herein we describe a modular, convergent synthesis of substituted benzo[a]benzo[6,7]-indolo[2,3-h]carbazoles (BBICZs) using a bidirectional gold-catalyzed cyclization reaction as a key step. A building block strategy enabled the easy variation of substituents at different positions of the core structure and a general analysis of substitution effects on the materials properties of the target compounds. All BBICZs were fully characterized and their optical and electronic properties were studied experimentally as well as by computational methods. Organic thin-film transistors based on eight selected derivatives were fabricated by vacuum deposition and charge-carrier mobilities up to 1 cm2/Vs were measured. (Figure presented.).

Enzyme-like Supramolecular Iridium Catalysis Enabling C?H Bond Borylation of Pyridines with meta-Selectivity

Al-Shehimy, Shaymaa,Gramage-Doria, Rafael,Roisnel, Thierry,Trouvé, Jonathan,Zardi, Paolo

supporting information, p. 18006 - 18013 (2021/05/07)

The use of secondary interactions between substrates and catalysts is a promising strategy to discover selective transition metal catalysts for atom-economy C?H bond functionalization. The most powerful catalysts are found via trial-and-error screening due to the low association constants between the substrate and the catalyst in which small stereo-electronic modifications within them can lead to very different reactivities. To circumvent these limitations and to increase the level of reactivity prediction in these important reactions, we report herein a supramolecular catalyst harnessing Zn???N interactions that binds to pyridine-like substrates as tight as it can be found in some enzymes. The distance and spatial geometry between the active site and the substrate binding site is ideal to target unprecedented meta-selective iridium-catalyzed C?H bond borylations with enzymatic Michaelis–Menten kinetics, besides unique substrate selectivity and dormant reactivity patterns.

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