124221-30-3 Usage
General Description
Disiloxane, 1,3-bis(2-bicyclo4.2.0octa-1,3,5-trien-3-ylethenyl)-1,1,3,3-tetramethyl-, homopolymer is a type of polymer that is formed from the monomer 1,3-bis(2-bicyclo4.2.0octa-1,3,5-trien-3-ylethenyl)-1,1,3,3-tetramethyl-disiloxane. This polymer is known for its high thermal stability, non-flammability, and resistance to chemicals. It is commonly used as a coating material in various industries, including automotive, aerospace, and electronics, where its properties are beneficial for protecting surfaces from wear, corrosion, and other environmental factors. Additionally, it is also used as a binder and adhesive in the production of composite materials and as a component in sealants and adhesives due to its strong bonding capabilities.
Check Digit Verification of cas no
The CAS Registry Mumber 124221-30-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,4,2,2 and 1 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 124221-30:
(8*1)+(7*2)+(6*4)+(5*2)+(4*2)+(3*1)+(2*3)+(1*0)=73
73 % 10 = 3
So 124221-30-3 is a valid CAS Registry Number.
InChI:InChI=1/C8H14.H6OSi2/c1-2-4-8-6-5-7(8)3-1;2-1-3/h7-8H,1-6H2;2-3H3
124221-30-3Relevant articles and documents
A Ligand-Free Pt3Cluster Catalyzes the Markovnikov Hydrosilylation of Alkynes with up to 106Turnover Frequencies
Rivero-Crespo, Miguel A.,Leyva-Pérez, Antonio,Corma, Avelino
, p. 1702 - 1708 (2017/02/10)
The Pt-catalyzed hydrosilylation of alkynes is the procedure of choice to obtain vinylsilanes, and is claimed to be the most relevant application of Pt in organic synthesis. More than half a century after its discovery, only β-vinylsilanes (anti-Markovnikov addition) are obtained with simple Pt catalysts, whereas α-vinylsilanes (Markovnikov addition) remain elusive compounds. Here the catalysis of the Markovnikov hydrosilylation of terminal alkynes by Pt3clusters, in parts-per-million amounts, to give a wide variety of α-vinylsilanes in reasonable isolated yields and with turnover frequencies that can reach up to one million per hour is reported. Moreover, these α-vinylsilanes are reactive in well-stablished C?C bond-forming cascade reactions, in which the corresponding β-isomers are unreactive. Besides its efficiency and synthetic usefulness, this catalytic system is an excellent example of how the atom-by-atom aggregation of a catalytic metal leads to a different selectivity for a given reaction.
