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Merck
모든 사진(1)

주요 문서

244473

Sigma-Aldrich

4-Octyne

99%

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About This Item

Linear Formula:
CH3CH2CH2C≡CCH2CH2CH3
CAS Number:
Molecular Weight:
110.20
Beilstein:
1732138
EC Number:
MDL number:
UNSPSC 코드:
12352100
eCl@ss:
39010412
PubChem Substance ID:
NACRES:
NA.22

vapor pressure

35 mmHg ( 37.7 °C)

Quality Level

분석

99%

양식

liquid

refractive index

n20/D 1.425 (lit.)

bp

131-132 °C (lit.)

mp

−103 °C (lit.)

density

0.751 g/mL at 25 °C (lit.)

SMILES string

CCCC#CCCC

InChI

1S/C8H14/c1-3-5-7-8-6-4-2/h3-6H2,1-2H3

InChI key

GZTNBKQTTZSQNS-UHFFFAOYSA-N

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일반 설명

4-Octyne, also known as dipropylethyne can be used as a versatile building block in organic synthesis. The kinetics of the stereoselective semi-hydrogenation of 4-octyne (in tetrahydrofuran) was studied.

애플리케이션

4-Octyne, an electron-rich dialkylacetylene, was used in the synthesis of highly substituted 1,3-dienes.

픽토그램

FlameHealth hazardExclamation mark

신호어

Danger

유해 및 위험 성명서

Hazard Classifications

Asp. Tox. 1 - Eye Irrit. 2 - Flam. Liq. 3 - STOT SE 3

표적 기관

Respiratory system

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point (°F)

84.2 °F - closed cup

Flash Point (°C)

29 °C - closed cup

개인 보호 장비

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter


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시험 성적서(COA)

Lot/Batch Number

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문서 라이브러리 방문

Chengxiang Zhou et al.
The Journal of organic chemistry, 71(8), 3184-3191 (2006-04-08)
The Pd(II)-catalyzed reaction of arylboronic acids and internal alkynes provides a convenient route to a wide variety of tetrasubstituted olefins. The reaction is conducted in DMSO using molecular O2 as an oxidant in the absence of any base. The reaction
Alexander M Kluwer et al.
Journal of the American Chemical Society, 127(44), 15470-15480 (2005-11-03)
The kinetics of the stereoselective semi-hydrogenation of 4-octyne in THF by the highly active catalyst [Pd{(m,m'-(CF(3))(2)C(6)H(3))-bian}(ma)] (2) (bian = bis(imino)acenaphthene; ma = maleic anhydride) has been investigated. The rate law under hydrogen-rich conditions is described by r = k[4-octyne](0.65)[Pd][H(2)], showing
Kelly E Aldrich et al.
Dalton transactions (Cambridge, England : 2003), 48(30), 11352-11360 (2019-07-10)
Highly dehydrated silica gel, SiO2700, gave a material with a total surface hydroxyl density of 0.31 ± 0.05 mmol g-1, 0.9 ± 0.1 Si-OH sites per nm2. Treatment of this material with Ti(NMe2)4 gave Ti(NMe2)3/SiO2700, which is 1.50% ± 0.07
Davide Albani et al.
Nature communications, 9(1), 2634-2634 (2018-07-08)
Ensemble control has been intensively pursued for decades to identify sustainable alternatives to the Lindlar catalyst (PdPb/CaCO3) applied for the partial hydrogenation of alkynes in industrial organic synthesis. Although the geometric and electronic requirements are known, a literature survey illustrates

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