Category: 14799-94-1

Nesmeyanov, A. N. published the artcileThermal telomerization of silanes with olefins, Product Details of C7H16Cl2Si, the publication is Tetrahedron (1957), 248-52, database is CAplus.

Thermal telomerization of MeSiHCl₂ (I) with C₂H₄ at 260-75°/560 atm. was effected in a 500 cc. stainless steel autoclave. I (123 g.) in an N atm. was mixed with C₂H₄, the autoclave heated to 260°/500 atm., and the mixture maintained 2 hrs. at 260-70° with the pressure falling to 50 atm. The collected products (499 g.) from 3 runs (381 g. I) were fractionated to give 51 g. I and the tabulated pure MeSiCl₂(C₂H₄)_nH products (n, % yield, n²⁰_D, d₂₀, MR, b.p., given): 1, 23.6, -, -, -, 100°; 2, 25.6, 1.4312, 1.0427, 43.48, 147-8°; 3, 17.7, 1.4390, 0.9931, 52.75, 91°/32 mm.; 4, 13.4, 1.4440, 0.9761, 61.83, 94°/6 mm.; 5, 4.7, 1.4490, 0.9600, 71.32, 111-14°/3 mm.; 6, 3.8, 1.4532, 0.9552, 80.20, 124-7/3 mm.; above 6, 8.5, -, -, -, -. The reaction with SiCl₃H (II) was carried out 2 hrs. at 270-85° at maximum pressure 200 atm. in 4 runs (261 g. II) and yielded 353 g. product, distilled over a 15 plate column to give 10 g. II and pure alkyltrichlorosilanes, SiCl₃(C₂H₄)_nH (n, % yield, n²⁰_D, d₂₀, MR, and b.p. recorded): 1, 20.1, -, -, -, 98°; 2, 25.3, 1.4352, 1.1577, 43.19, 146-7°; 3, 15.4, 1.4440, 1.1094, 52.51, 87-9°/30; 4, 13.1, 1.4490, 1.0744, 61.76, 96.5°/10; 5, 4.0, 1.4547, 1.0501, 71.17, 76°/2; above 5, 12.2,-,-,- -. The structures of the methylalkyldichloro- and alkyltrichlorosilanes were substantiated by the MR determinations and by formation by the Grignard reaction of the corresponding trimethyl derivatives (compound, b.p., n²⁰_D, d₂₀, and MR given): BuSiMe₃, 114°, 1.4030, 0.7203, 44.12; C₆H₁₃SiMe₃, 163°, 1.4160, 0.7412, 53.58; C₈H₁₇SiMe₃, 75°/10 mm., 1.4242, 0.7646, 62.58. The reaction of I with C₃H₆ was carried out in 2 runs at 260-75° 3 hrs. at 100 atm. maximum pressure to give 216 g. product from 151 g. I. Distillation gave 21 g. I and MeSiCl₂(C₃H₆)_nH (n, n²⁰_D, and b.p./mm. given): 1, 1.4240, 123-4°; 2, 1.4400, 82°/32; 3, 1.4540, 80-2°/2. The telomerization reactions resulted from the cleavage of the Si-H bond, as evidenced by its absence in the compounds obtained as shown by the neg. test with KOH in H₂O. It is evident that the thermal reaction is of a chain character.

Tetrahedron published new progress about 14799-94-1. 14799-94-1 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Dichloro(hexyl)(methyl)silane, and the molecular formula is C7H16Cl2Si, Product Details of C7H16Cl2Si.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Nesmeyanov, A. N. published the artcileThermal telomerization of olefins with silanes, Quality Control of 14799-94-1, the publication is Nesmeyanov, A. N., Izbrannye Trudy (1959), 688-95, database is CAplus.

cf. CA 51, 14541i; 52, 6165d. MeSiCl₂H (11.5 g.) was autoclaved with 4.3 g. ethylene in a glass ampul at 320-40° for 3 hrs. A 46% conversion was realized, with MeEtSiCl₂ and EtBuSiCl₂ comprising 80% and 17% of the product, resp. This was repeated in a steel 2.7-1. bomb with 1 mole MeSiCl₂H and 2.7 moles ethylene at 340° for 40 min. A 46% conversion was also realized with 42% MeEtSiCl₂ and 28% MeBuSiCl₂ (CA 51, 11988b). Ph₃SiH (32 g.), 30 ml. n-hexane, and 25 g. ethylene autoclaved 12 hrs. at 290-300° gave EtSiPh₃, m. 68-70°, BuSiPh₃, m. 81-2°, and (Ph₃Si)₂O, m. 221°. In a 0.5-1. steel autoclave was placed 65 g. MeSiCl₂H, 50 ml. propylene, and 0.1 ml. of a solution containing 0.00865 g. H₂PtCl₆.6H₂O in iso-PrOH. The mixture was warmed to room temperature, the reaction proceeding exothermally. After an hr., the mixture was removed and distilled to give 77 g. BuSiMeCl₂, b. 123-4°, n²⁰_D 1.4230, d₂₀ 1.0432, Raman spectra given. Propylene and MeSiCl₂H treated (CA 51, 11988b) and the MePrSiCl₂ isolated and methylated by the Grignard method gave Me₃SiPr, n²⁰_D 1.3925, d₂₀ 0.7020, Raman spectra given. Lines corresponding to Me₃SiPr-iso were not observed. C₆H₁₃SiMeCl₂ (from propylene and MeSiCl₂H) was also methylated with a Grignard to give C₆H₁₃SiMe₃, b₆₀ 82-3°, n²⁰_D 1.4171, d₂₀ 0.7493. A study was done with MeSiCl₂H and ethylene to determine optimum conditions for preparation of MeSiCl₂(C₂H₄)_nH, where n = 1, 2, 3, >3. A temperature of 300 ± 10° and 150 ± 5 atm. in an autoclave were best. Maximum yield, n = 1, when by moles C₂H₄/MeSiCl₂H = 0.75; n = 2, when C₂H₄/MeSi- Cl₂H = 1.5; n = 3, when C₂H₄/MeSiCl₂H = 2.8 and 3.4; n > 3 when C₂H₄/MeSiCl₂H = 9. The ratio C₂H₄/MeSiCl₂H was 2 and the pressure held at 100 atm. to give the maximum yield, n = 1, when temperature was raised to 400° and the mixture allowed to cool; n = 2, when the temperature = 320° for 10 min.; n = 3, when the temperature = 305° for 50 min.; n > 3, when the temperature = 285° for 120 min.

Nesmeyanov, A. N., Izbrannye Trudy published new progress about 14799-94-1. 14799-94-1 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Dichloro(hexyl)(methyl)silane, and the molecular formula is C7H16Cl2Si, Quality Control of 14799-94-1.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Shostenko, A. G. published the artcileRadiational reaction of methyldichlorosilane with ethylene, Application In Synthesis of 14799-94-1, the publication is Khimiya Vysokikh Energii (1976), 10(2), 189-91, database is CAplus.

Radiochem. yields (mols./100 eV) were determined for MeSiCl2(C2H4)nH (n = 1, 2, 3), produced in the title reaction, at different reactant ratios. The activation energies of chain transfer and chain growth were practically equal.

Khimiya Vysokikh Energii published new progress about 14799-94-1. 14799-94-1 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Dichloro(hexyl)(methyl)silane, and the molecular formula is C7H8BNO4, Application In Synthesis of 14799-94-1.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Barry, A. J. published the artcileReaction of olefins and chlorohydrosilanes, Recommanded Product: Dichloro(hexyl)(methyl)silane, the publication is Journal of the American Chemical Society (1947), 2916, database is CAplus.

Organic Si compounds have been prepared by heating an unsaturated organic compound and R_xSiCl_y under pressure at temperatures from 160° (slow reaction) to 400° (rapid reaction). Thus 406 g. HSiCl₃ and 756 g. octadecene, heated to 300° during 2.5 hrs., give 94% octadecyltrichlorosilane, b_2-3 185-99°. PrMeSiCl₂, b₇₄₇ 123-4°, results in 72% yield on heating 345 g. MeSiHCl₂ and 128 g. C₃H₆ 12 hrs. at 300°. The following new compounds were thus prepared: sec-butyltrichlorosilane, b₇₃₆ 145-6°; (2-methylpentyl)trichlorosilane, b₅₀ 98°; 3-(2,2,4-trimethylpentyl)trichlorosilane (from diisobutylene), b₂₀ 94-6°; hexadecyltrichlorosilane, b_7.5 194-6°; butenyltrichlorosilane, b₄₀ 64°; trichlorosilyl(trichlorosilylethyl)cyclohexane, b₆ 161°; hexenyltrichlorosilane, b₅₀ 103-40°; bis(trichlorosilyl)hexane, b₁₀ 148-53°; propyltribromosilane, b₇₅₆ 183°; ethylmethyldichlorosilane, b₇₄₄ 100°; butylmethyldichlorosilane, b₇₄₄ 147.5-8°; hexylmethyldichlorosilane, b₇₄₃ 192°; methyloctyldichlorosilane, b₂₀ 100-16°; methyloctadecyldichlorosilane, b₆ 200-10°; cyclohexylmethyldichlorosilane, b₇₄₅ 204°; phenylpropyldichlorosilane, b_44-7 140-4°; diethylpropylchlorosilane, b₇₄₂ 164-6°; methylphenylpropylchlorosilane, b₃₀ 124-6°; diphenylpropylchlorosilane, b₁₀ 174-6°.

Journal of the American Chemical Society published new progress about 14799-94-1. 14799-94-1 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Dichloro(hexyl)(methyl)silane, and the molecular formula is C7H16Cl2Si, Recommanded Product: Dichloro(hexyl)(methyl)silane.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Freidlina, R. Kh. published the artcileThermal telomerization of olefins with silanes, Application In Synthesis of 14799-94-1, the publication is Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya (1960), 662-8, database is CAplus.

cf. CA 52, 6165d. Heating 11.5 g. MeSiHCl₂ and 4.3 g. C₂H₄ in an ampul in an autoclave 3 hrs. at 320-40° gave mixed MeEtSiCl₂ and MeBuSiCl₂ in yields of 42-80% and 17-28%, resp. The use of a bare steel autoclave tended to lower the yield of MeEtSiCl₂ and raise that of BuMeSiCl₂. Similarly, Ph₃SiH and C₂H₄ in hexane 12 hrs. at 300° gave Ph₃SiEt, m. 68-70°, and Ph₃SiBu, m. 81-2°, along with some (Ph₃Si)₂O, m. 224°. Reaction of MeSiHCl₂ and propylene in the presence of a catalytic amount of H₂PtCl₆ in iso-PrOH in 1 hr. at room temperature gave MePrSiCl₂, which with MeMgBr gave known Me₃SiPr. In the telomerization of MeSiHCl₂ with C₂H₄ at 300°, the increased proportion of the olefin tended to lower steadily the yield of MeSiCl₂Et and MeSiCl₂(CH₂CH₂)₂H, while the yield of MeSiCl₂(CH₂CH₂)₃H remained substantially constant and that of MeSiCl₂(CH₂CH₂)₃H rose rapidly. Elevation of the temperature from 285° to 350° increased the yield of MeSiCl₂Et and decreased that of telomers with n over 3, while the intermediate telomer yield remained substantially constant

Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya published new progress about 14799-94-1. 14799-94-1 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Dichloro(hexyl)(methyl)silane, and the molecular formula is C7H16Cl2Si, Application In Synthesis of 14799-94-1.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Zhao, Yan published the artcileAdaptability of different nebulizer systems to different silicon chemical forms for gasoline in inductively coupled plasma optical emission spectrometry, Category: chlorides-buliding-blocks, the publication is Guangpuxue Yu Guangpu Fenxi (2016), 36(10), 3303-3307, database is CAplus and MEDLINE.

Silicon is not a natural component of gasoline but it can cause silica deposition in vehicle combustion system which may lead to severe engine failure. Silicon is present in gasoline in different chem. forms. The anal. of oil products by directly measuring under organic phase through inductively coupled plasma optical emission spectrometry (ICP-OES) is becoming a widely accepted approach as it is found to be simple and fast. The work focused on the influence of the sample nebulizer systems to different silicon chem. forms by ICP-OES. For a sample introduction system consisting of micronebulizer coupled to a cyclonic spray chamber, the results indicated that the ICP-OES signals depended strongly on the silicon chem. forms, and the higher emission intensities were attributed to the compound volatility. The variability of the signals induced by the different silicon compounds was less significant for the same nebulizer system with a temperature control device. Nevertheless, the interferences were not effectively mitigated. Nevertheless, direct injection high efficiency nebulizer (DIHEN) introduced in the present work could effectively mitigate the interferences of different silicon chem. forms, was suitable for the determination of silicon in gasoline. The quant. method with the potential DIHEN nebulizer system showed good linearity and the recoveries ranged from 92.8%-108.7%, the limit of detection was 0.05 mg·kg^-1. The relative standard deviation (RSD) was between 1.05% and 4.63%. Compared with the microwave digestion method, the proposed method was found to be highly simple, rapid, sensitive and accurate, which was foreseen a promising application for silicon determination in gasoline.

Guangpuxue Yu Guangpu Fenxi published new progress about 14799-94-1. 14799-94-1 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Dichloro(hexyl)(methyl)silane, and the molecular formula is C3H5BN2O2, Category: chlorides-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics