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bis((trimethylsilyl)ethynyl)diphenylsilane is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

25284-31-5

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25284-31-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 25284-31-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,2,8 and 4 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 25284-31:
(7*2)+(6*5)+(5*2)+(4*8)+(3*4)+(2*3)+(1*1)=105
105 % 10 = 5
So 25284-31-5 is a valid CAS Registry Number.

25284-31-5Relevant academic research and scientific papers

Sodium triethylborohydride as a catalyst for the dehydrogenative silylation of terminal alkynes with hydrosilanes

Skrodzki, Maciej,Witomska, Samanta,Pawlu?, Piotr

supporting information, p. 5948 - 5951 (2018/05/14)

The first example of sodium triethylborohydride-catalyzed C(sp)-H bond silylation is reported. The reaction of aromatic and aliphatic alkynes with aromatic hydrosilanes and hydrosiloxanes proceeded in a highly selective manner to afford dehydrocoupling pr

Iridium-promoted conversion of chlorosilanes to alkynyl derivatives in a one-pot reaction sequence

Kownacki, Ireneusz,Orwat, Bartosz,Marciniec, Bogdan

supporting information, p. 3051 - 3059 (2014/07/08)

By making use of the catalytic potential of the iridium system [{Ir(μ-Cl)(CO)2}2]/NEt(i-Pr)2 in the synthesis of silyl-functionalized alkynes via silylative coupling of terminal alkynes/diynes with iodosilanes, we propose

Fourfold Diels-Alder Reaction of Tetraethynylsilane

Geyer, Florian L.,Rode, Alexander,Bunz, Uwe H. F.

, p. 16448 - 16453 (2016/02/12)

A series of ethynylated silanes, including tetraethynylsilane was treated with tetraphenylcyclopentadienone at 300 8C under microwave irradiation to give the aromatized Diels-Alder adducts as sterically encumbered mini-dendrimers with up to 20 benzene rings. The sterically most congested adducts display red-shifted emission through intramolecular p-p interactions in the excited state.

NEW (TRIORGANOSILYL)ALKYNES AND THEIR DERIVATIVES AND A NEW CATALYTIC METHOD FOR OBTAINING NEW AND CONVENTIONAL SUBSTITUTED (TRIORGANOSILYL)ALKYNES AND THEIR DERIVATIVES

-

Paragraph 0161; 0183-189, (2014/02/15)

The present invention relates to new (triorganosilyl)alkynes and their derivatives having general formula 1 R1—C≡C—Z (I) In its second aspect, this invention relates to a new selective method for the preparation of new and conventional (triorga

NEW (TRIORGANOSILYL)ALKYNES AND THEIR DERIVATIVES AND A NEW CATALYTIC METHOD FOR OBTAINING NEW AND CONVENTIONAL SUBSTITUTED (TRIORGANOSILYL)ALKYNES AND THEIR DERIVATIVES

-

Page/Page column 15, (2012/07/14)

The present invention relates to new (triorganosilyl)alkynes and their derivatives having general formula 1 R1-C≡C-Z (I) In its second aspect, this invention relates to a new selective method for the preparation of new and conventional (triorga

Silylative coupling of terminal alkynes with iodosilanes: New catalytic activation of sp-hybridized carbon-hydrogen bonds

Kownacki, Ireneusz,Marciniec, Bogdan,Dudziec, Beata,Kubicki, MacIej

experimental part, p. 2539 - 2545 (2011/06/27)

The [{Ir(μ-Cl)(CO)2}2] (I)-catalyzed reaction of terminal alkynes and diynes with Me3SiI with the aid of NEt(i-Pr)2 occurs smoothly, leading to the formation of mono- and bis-silyl-functionalized alkynyl derivat

Synthesis and characterisation of new oligoacetylenic silanes

Wong, Wai-Yeung,Lee, Albert W.-M.,Wong, Chun-Kin,Lu, Guo-Liang,Zhang, Hongkui,Mo, Tian,Lam, Kwun-Ting

, p. 354 - 360 (2007/10/03)

Synthetic routes to a series of novel oligoacetylenic silanes with or without (hetero)aromatic bridges have been developed. The compound Me3SiC≡CSi(Ph)2C≡CSiMe3 was first prepared, which was selectively desilylated with CaCO3 in methanol at room temperature to afford the mono-protected bis(alkynyl) silane Me3SiC≡CSi(Ph)2C≡CH in moderate yield. Treatment of this mono-protected species with nBuLi, followed by silylation with Ph2SiCl2, gives a good yield of Me3SiC≡CSi(Ph)2C≡CSi(Ph)2 C≡CSi(Ph)2C≡CSiMe3, with alternating silicon and acetylene units. A range of linear silicon-linked oligoalkynes containing phenylene, bithienylene and anthrylene rings, HC≡CRC≡CSi(Ph)2C≡CRC≡CH and HC≡CRC≡CSi(Ph)2C≡CRC≡CSi(Ph)2 C≡CRC≡CH (R = 1,4-phenylene, 5,5′-bithienylene or 9,10-anthrylene), were synthesised by condensation reactions of Ph2SiCl2 with the components obtained in situ from a HC≡CRC≡CH-nBuLi mixture in THF and the products were isolated by chromatography on silica. All these new compounds have been characterised by IR, 1H and 13C NMR and UV/VIS spectroscopies and mass spectrometry. The single-crystal X-ray structure of HC≡C(p-C6H4)C≡CSi(Ph)2C≡C (p-C6H4)C≡CSi(Ph)2C≡C(p-C 6H4C≡CH has been determined, showing that two silicon atoms and six acetylene units constitute the backbone of the molecule.

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