Version 1.0 Regulation (EC) No 1907/2006 1 - Product and Company Information Product Name TRIS(TRIMETHYLSILYL)SILANOL - 50 MG 2 - Hazards Identification SPECIAL INDICATION OF HAZARDS TO HUMANS AND THE ENVIRONMENT Not hazardous according to Directive 67/548/EEC. 3 - Composition/Information on Ingredients Product Name CAS # EC no Annex I Index Number TRIS(TRIMETHYLSILYL)SILANOL 7428-60-6 None None Formula C9H28OSI4 Molecular Weight 264,6600 AMU 4 - First Aid Measures AFTER INHALATION If inhaled, remove to fresh air. If breathing becomes difficult, call a physician. AFTER SKIN CONTACT In case of contact, immediately wash skin with soap and copious amounts of water. AFTER EYE CONTACT In case of contact with eyes, flush with copious amounts of water for at least 15 minutes. Assure adequate flushing by separating the eyelids with fingers. Call a physician. AFTER INGESTION If swallowed, wash out mouth with water provided person is conscious. Call a physician. 5 - Fire Fighting Measures EXTINGUISHING MEDIA ALDRICH www.molbase.com Suitable: Water spray. Carbon dioxide, dry chemical powder, or appropriate foam. SPECIAL RISKS Specific Hazard(s): Emits toxic fumes under fire conditions. SPECIAL PROTECTIVE EQUIPMENT FOR FIREFIGHTERS Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes. 6 - Accidental Release Measures METHODS FOR CLEANING UP Absorb on sand or vermiculite and place in closed containers for disposal. Ventilate area and wash spill site after material pickup is complete. 7 - Handling and Storage HANDLING Directions for Safe Handling: Avoid inhalation. Avoid contact with eyes, skin, and clothing. Avoid prolonged or repeated exposure. STORAGE Conditions of Storage: Keep tightly closed. SPECIAL REQUIREMENTS: Air and moisture sensitive. 8 - Exposure Controls / Personal Protection ENGINEERING CONTROLS Safety shower and eye bath. Mechanical exhaust required. GENERAL HYGIENE MEASURES Wash thoroughly after handling. PERSONAL PROTECTIVE EQUIPMENT Respiratory Protection: Use respirators and components tested and approved under appropriate government standards such as NIOSH (US) or CEN (EU). Respiratory protection is not required. Where protection is desired, use multi-purpose combination (US) or type ABEK (EN 14387) respirator cartridges. Hand Protection: Protective gloves. Eye Protection: Chemical safety goggles. 9 - Physical and Chemical Properties Appearance Physical State: Liquid Property Value At Temperature or Pressure pH N/A BP/BP Range N/A MP/MP Range N/A Flash Point N/A Flammability N/A Autoignition Temp N/A Oxidizing Properties N/A Explosive Properties N/A ALDRICH www.molbase.com Explosion Limits N/A Vapor Pressure N/A Partition Coefficient N/A Viscosity N/A Vapor Density N/A Saturated Vapor Conc. N/A Evaporation Rate N/A Bulk Density N/A Decomposition Temp. N/A Solvent Content N/A Water Content N/A Surface Tension N/A Conductivity N/A Miscellaneous Data N/A Solubility N/A 10 - Stability and Reactivity STABILITY Stable: Stable. Materials to Avoid: Strong oxidizing agents. HAZARDOUS DECOMPOSITION PRODUCTS Hazardous Decomposition Products: Carbon monoxide, Carbon dioxide, Silicon oxide, Silicon dioxide. HAZARDOUS POLYMERIZATION Hazardous Polymerization: Will not occur 11 - Toxicological Information SIGNS AND SYMPTOMS OF EXPOSURE To the best of our knowledge, the chemical, physical, and toxicological properties have not been thoroughly investigated. ROUTE OF EXPOSURE Skin Contact: May cause skin irritation. Skin Absorption: May be harmful if absorbed through the skin. Eye Contact: May cause eye irritation. Inhalation: Material may be irritating to mucous membranes and upper respiratory tract. May be harmful if inhaled. Ingestion: May be harmful if swallowed. 12 - Ecological Information No data available. 13 - Disposal Considerations SUBSTANCE DISPOSAL Contact a licensed professional waste disposal service to dispose of this material. Dissolve or mix the material with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber. Observe all federal, state, and local environmental regulations. 14 - Transport Information RID/ADR Non-hazardous for road transport. ALDRICH www.molbase.com IMDG Non-hazardous for sea transport. IATA Non-hazardous for air transport. 15 - Regulatory Information Not hazardous according to Directive 67/548/EEC. Caution: Substance not yet fully tested (EU). 16 - Other Information WARRANTY The above information is believed to be correct but does not purport to be all inclusive and shall be used only as a guide. The information in this document is based on the present state of our knowledge and is applicable to the product with regard to appropriate safety precautions. It does not represent any guarantee of the properties of the product. Inc., shall not be held liable for any damage resulting from handling or from contact with the above product. See reverse side of invoice or packing slip for additional terms and conditions of sale. Copyright 2010 Co. License granted to make unlimitedpaper copies for internal use only. DISCLAIMER For R&D use only. Not for drug, household or other uses. ALDRICH www.molbase.com
Oxidation of Triorganosilanes and Related Compounds by Chlorine Dioxide
作者:S. A. Grabovskiy、N. N. Kabal’nova
DOI:10.1134/s1070363221120069
日期:2021.12
mechanism explaining the formation of products and the observed regularities of the oxidation of silanes with chlorine dioxide has been proposed. A thermochemical analysis of some possible pathways in the gas phase using methods G4, G3, M05, and in an acetonitrile solution by the SMD-M05 method was carried out. The oxidation process can occur both with the participation of ionic and radical intermediates
Twofold Radical-Based Synthesis of <i>N</i>,<i>C</i>-Difunctionalized Bicyclo[1.1.1]pentanes
作者:Helena D. Pickford、Jeremy Nugent、Benjamin Owen、James. J. Mousseau、Russell C. Smith、Edward A. Anderson
DOI:10.1021/jacs.1c04180
日期:2021.7.7
Bicyclo[1.1.1]pentylamines (BCPAs) are of growing importance to the pharmaceutical industry as sp3-rich bioisosteres of anilines and N-tert-butyl groups. Here we report a facile synthesis of 1,3-disubstituted BCPAs using a twofold radical functionalization strategy. Sulfonamidyl radicals, generated through fragmentation of α-iodoaziridines, undergo initial addition to [1.1.1]propellane to afford iodo-BCPAs;
Organophotoredox assisted cyanation of bromoarenes <i>via</i> silyl-radical-mediated bromine abstraction
作者:Maniklal Shee、Sk. Sheriff Shah、N. D. Pradeep Singh
DOI:10.1039/d0cc00163e
日期:——
The insertion of a nitrile (–CN) group into arenes through the direct functionalization of the C(sp2)–Br bond is a challenging reaction. Herein, we report an organophotoredox method for the cyanation of aryl bromides using the organic photoredox catalyst 4CzIPN and tosyl cyanide (TsCN) as the nitrile source. A photogenerated silyl radical, via a single electron transfer (SET) mechanism, was employed
Highly Selective Hydroxylation and Alkoxylation of Silanes: One-Pot Silane Oxidation and Reduction of Aldehydes/Ketones
作者:Nianhua Luo、Jianhua Liao、Lu Ouyang、Huiling Wen、Yuhong Zhong、Jitian Liu、Weiping Tang、Renshi Luo
DOI:10.1021/acs.organomet.9b00716
日期:2020.1.13
An efficient chemoselective iridium-catalyzed method for the hydroxylation and alkoxylation of organosilanes to generate hydrogen gas and silanols or silyl ethers was developed. A variety of sterically hindered silanes with alkyl, aryl, and ether groups were tolerated. Furthermore, this atom-economical catalytic protocol can be used for the synthesis of silanediols and silanetriols. A one-pot silane
Cobalt-Catalyzed Selective Synthesis of Disiloxanes and Hydrodisiloxanes
作者:Sandip Pattanaik、Chidambaram Gunanathan
DOI:10.1021/acscatal.9b00305
日期:2019.6.7
independent experiments confirmed the catalytic oxidation of silane to silanol, and further dehydrocoupling processes are involved in syntheses of symmetrical siloxanes, cyclotetrasiloxanes, and siloxane cage compounds, whereas the unsymmetrical monohydrosiloxane syntheses from silanes and silanols proceeded via dehydrogenative coupling reactions. Overall these cobalt-catalyzed oxidative coupling reactions
分别从硅烷和二氢硅烷与水的反应中获得对称的硅氧烷和环四硅氧烷的选择性合成,并且该反应由NNN H t Bu钴(II)钳形配合物催化。有趣的是,当苯硅烷用水进行催化时,获得了由12个硅和18个氧中心组成的硅氧烷笼,反应明显进行,释放出3当量的分子氢(36 H 2)在温和的实验条件下。在硅烷与不同的硅烷醇反应后,通过钴催化实现了高选择性和受控的高级单氢硅氧烷和二甲氧基单氢硅烷的合成。释放的分子氢是在所有这些转化中观察到的唯一副产物。机理研究表明,反应是通过均质途径发生的。动力学和独立实验证实了硅烷催化氧化为硅烷醇的过程,并且进一步的脱氢偶联过程还涉及对称硅氧烷,环四硅氧烷和硅氧烷笼型化合物的合成,而硅烷和硅烷醇的不对称一氢硅氧烷则通过脱氢偶联反应进行合成。总体而言,这些钴催化的氧化偶联反应基于Si–H,Si–OH,和硅烷,硅烷醇和水的O–H键活化。建议使用由Co(II)中间体组成的催化循环。