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重要文件

748854

Sigma-Aldrich

碘三甲基硅烷 溶液

1 M in dichloromethane

同義詞:

三甲基碘硅烷 溶液, TMSI, 碘代三甲硅烷

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About This Item

經驗公式(希爾表示法):
C3H9ISi
分子量::
200.09
分類程式碼代碼:
12352101
NACRES:
NA.22
暫時無法取得訂價和供貨情況

形狀

liquid

品質等級

濃度

1 M in dichloromethane

折射率

n20/D 1.433

密度

1.334 g/mL at 25 °C

儲存溫度

2-8°C

一般說明

Iodotrimethylsilane [(CH3)3SiI] is an important and versatile organosilicon reagent with wide applications in organic synthesis. It is used as a neutral nucleophilic reagent, trimethylsilylating agent, Lewis acid catalyst, reducing agent and dehydrating agent in many organic reactions.[1]

應用

Iodotrimethylsilane can be used as:
  • A reagent in the hydroiodation of ynamides to yield the important building blocks (E)-α-iodoenamides.[2]
  • A reagent in the synthesis of (1-iodovinyl) arenes by hydroiodation of trimethylsilyl ethynylarenes.[3]

訊號詞

Danger

危險分類

Carc. 2 - Eye Dam. 1 - Flam. Liq. 2 - Skin Corr. 1B - STOT SE 3

標靶器官

Central nervous system

安全危害

儲存類別代碼

3 - Flammable liquids

水污染物質分類(WGK)

WGK 3

閃點(°F)

-23.8 °F

閃點(°C)

-31 °C


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分析證明 (COA)

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One-step synthesis of (1-iodovinyl) arenes from trimethylsilyl ethynylarene through iodotrimethylsilane-mediated hydroiodation
Sato AH, et al.
Tetrahedron Letters, 53(28), 3585-3589 (2012)
Iodotrimethylsilane
Encyclopedia of Reagents for Organic Synthesis, Second Edition (2005)
Regio-and stereospecific synthesis of (E)-α-iodoenamide moieties from ynamides through iodotrimethylsilane-mediated hydroiodation
Sato AH, et al.
Tetrahedron Letters, 54(10), 1309-1311 (2013)

Questions

1–2 of 2 Questions  
  1. What is known of the mechanism of reactions involving product 195529, Iodotrimethylsilane?

    1 answer
    1. The mechanism for cleavage of esters is described in PNAS, 75(1), 4-6 (1978).The authors go on to explain that the data do not support a previously published mechanism via a carbenium iodide.The paper also discusses the cleavage of ethers using iodotrimethylsilane. It appears that this is not as efficient as cleavage of esters, and a couple of mechanisms (pages 5 and 6) are proposed.Olah also described the cleavage of the phosphate esters in peptides that contain phosphate esters, using iodotrimethylsilane (Tetrahedron, 38, 2225 (1982)). The amide linkages in the peptide backbone are not cleaved.

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  2. What is the Department of Transportation shipping information for this product?

    1 answer
    1. Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.

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