98-13-5 Usage
Chemical Properties
Phenyl trichlorosilane is a colorless to light yellow liquid.
Uses
Phenyltrichlorosilane can be used in the development of high-capacitance polymer dielectric for low-voltage organic transistors.
Preparation
The high-temperature condensation (HTC) technique proved to be very convenient and economical for the production of phenyltrichlorosilane and in recent years has become one of the main industrial techniques for its synthesis.The synthesis of phenyltrichlorosilane by HTC technique is conducted according to the reaction:HSiCI3 + C6H5CI →（HCI）→ C6H5SiCI3In this case, similarly to the vinyltrichlorosilane case, in the conditions of synthesis (600-640 °C) there is a secondary reaction of reduction, which forms silicon tetrachloride and benzene. However, if the process is conducted in the presence of an initiator (5% of diazomethane), it is possible to reduce the temperature down to 500-550 °C. Then the secondary reaction proceeds very slowly, which increases the yield of phenyltrichlorosilane by 1.5 times. To suppress the reduction process, one can also add benzene and silicon tetrachloride into the reactive mixture. It is also possible to boost the yield of phenyltrichlorosilane and increase the degree of the chlorobenzene transformation by using two subsequent reactors.
General Description
A colorless liquid with a pungent odor. Flash point 91°F. Decomposed by moisture or water to hydrochloric acid with evolution of heat. Corrosive to metals and tissue.
Reactivity Profile
Chlorosilanes, such as Phenyltrichlorosilane are compounds in which silicon is bonded to from one to four chlorine atoms with other bonds to hydrogen and/or alkyl groups. Chlorosilanes react with water, moist air, or steam to produce heat and toxic, corrosive fumes of hydrogen chloride. They may also produce flammable gaseous H2. They can serve as chlorination agents. Chlorosilanes react vigorously with both organic and inorganic acids and with bases to generate toxic or flammable gases.
Health Hazard
Highly toxic; may cause death or permanent injury after short inhalation exposure to small quantity. Chemical burns to all exposed membranes and tissues with severe tissue destruction. Inhalation -- lungs may fill up with fluid or throat may swell causing suffocation. Eyes -- damage to corneas may cause blindness. Delayed: after oral exposure stomach and intestines may perforate or be obstructed by scar tissue.
Flammability and Explosibility
Nonflammable
Potential Exposure
Phenyl trichlorosilane is used to make silicones for water repellants, insulating resins; heat resistant paints; and as a laboratory reagent
Shipping
UN1804 Phenyltrichlorosilane, Hazard class: 8; Labels: 8-Corrosive material.
Check Digit Verification of cas no
The CAS Registry Mumber 98-13-5 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 9 and 8 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 98-13:
(4*9)+(3*8)+(2*1)+(1*3)=65
65 % 10 = 5
So 98-13-5 is a valid CAS Registry Number.
InChI:InChI=1/C6H5Si.3ClH/c7-6-4-2-1-3-5-6;;;/h1-5H;3*1H/q+3;;;/p-3
98-13-5Relevant articles and documents
Neutral-Eosin-Y-Photocatalyzed Silane Chlorination Using Dichloromethane
Fan, Xuanzi,Xiao, Pin,Jiao, Zeqing,Yang, Tingting,Dai, Xiaojuan,Xu, Wengang,Tan, Jin Da,Cui, Ganglong,Su, Hongmei,Fang, Weihai,Wu, Jie
supporting information, p. 12580 - 12584 (2019/08/16)
Chlorosilanes are versatile reagents in organic synthesis and material science. A mild pathway is now reported for the quantitative conversion of hydrosilanes to silyl chlorides under visible-light irradiation using neutral eosin Y as a hydrogen-atom-transfer photocatalyst and dichloromethane as a chlorinating agent. Stepwise chlorination of di- and trihydrosilanes was achieved in a highly selective fashion assisted by continuous-flow micro-tubing reactors. The ability to access silyl radicals using photocatalytic Si?H activation promoted by eosin Y offers new perspectives for the synthesis of valuable silicon reagents in a convenient and green manner.
Electrochemical properties of arylsilanes
Biedermann, Judith,Wilkening, H. Martin R.,Uhlig, Frank,Hanzu, Ilie
, p. 13 - 18 (2019/03/27)
In the past, the electrochemical properties of organosilicon compounds were investigated for both fundamental reasons and synthesis purposes. Little is, however, known about the electrochemical behaviour of hydrogen-bearing arylsilanes. Here, we throw light on the electrochemical properties of 11 arylsilanes compounds, 2 of them synthesized for the first time. The oxidation potentials are found to depend on both the nature and number of the aryl groups. Based on these findings it was possible to establish some variation trends that match the expected structure–property correlations. Furthermore, we present first insights into the electrochemical reaction kinetics behind and identify several soluble electrochemical oxidation products.
Entecavir intermediate and its preparation method
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Paragraph 0380-0383; 0393; 0394; 0396, (2017/12/28)
The invention discloses an entecavir intermediate and a preparation method thereof. A provided preparation method for an entecavir intermediate compound 10 comprises the following steps: performing reducing reaction on an ester compound 11 in an organic solvent under the effect of a reducing agent, so as to obtain the compound 10. A provided preparation method for an entecavir intermediate compound 11 comprises the following steps: reacting a compound 12 with a hydroxyl protection reagent in an organic solvent in the presence of an acid to add a hydroxyl protection group, so as to obtain the compound 11. The preparation methods are cheap and easily available in raw materials, mild in reaction conditions, relatively high in product yield, good in atom economy, friendly to environment, and suitable for industrialized production.
