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761060

Sigma-Aldrich

(Tributylphosphoranylidene)acetonitrile

97%

别名:

(Cyanomethylene)tributylphosphorane

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About This Item

经验公式(希尔记法):
C14H28NP
分子量:
241.35
MDL编号:
UNSPSC代码:
12352000
NACRES:
NA.22

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质量水平

方案

97%

表单

liquid

折射率

n20/D 1.500 (lit.)

密度

0.921 g/mL at 25 °C

储存温度

2-8°C

SMILES字符串

[P](=CC#N)(CCCC)(CCCC)CCCC

InChI

1S/C14H28NP/c1-4-7-11-16(14-10-15,12-8-5-2)13-9-6-3/h14H,4-9,11-13H2,1-3H3

InChI key

OZMLUMPWPFZWTP-UHFFFAOYSA-N

一般描述

(Tributylphosphoranylidene)acetonitrile or cyanomethylenetrimethylphosphorane (Bu3P=CHCN) is a Wittig reagent employed in the transformation of the carbonyl compounds, including aldehydes, esters, and lactones into the corresponding unsaturated nitriles.[1]

应用

(Tributylphosphoranylidene)acetonitrile can be utilized as a reagent in the:
  • Stereoselective synthesis of skytanthine and other O- and N-containing heterocycles by Mitsunobu intramolecular cycloalkylation.[2]
  • Wittig olefination of esters, lactones, N-Boc lactam, and cyclic imide to corresponding Wittig products.[3]

储存分类代码

10 - Combustible liquids

WGK

WGK 3

闪点(°F)

Not applicable

闪点(°C)

Not applicable


历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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其他客户在看

Slide 1 of 1

1 of 1

(Tributylphosphoranylidene) acetonitrile
Wyatt, Peter B
Encyclopedia of Reagents for Organic Synthesis, Second Edition (2001)
Formation of heterocycles by the Mitsunobu reaction. Stereoselective synthesis of (+)-α-skytanthine
Tsunoda T, et al.
Tetrahedron Letters, 37(14), 2463-2466 (1996)
Cyanomethylenetrimethylphosphorane, a powerful reagent for the Wittig olefination of esters, lactones and imides
Tsunoda T, et al.
Tetrahedron Letters, 41(2), 235-237 (2000)

Questions

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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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