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Merck
CN

274658

Sigma-Aldrich

2,3,4,5-四甲基-2-环戊烯酮,顺反异构体混合物

95%

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别名:
2,3,4,5-Tetramethyl-2-cyclopenten-1-one, 2,3,4,5-Tetramethylcyclopenten-1-one, 2,3,4,5-Tetramethylcyclopentenone, Tetramethylcyclopent-2-enone
经验公式(希尔记法):
C9H14O
CAS号:
分子量:
138.21
Beilstein:
2324088
MDL编号:
UNSPSC代码:
12352100
PubChem化学物质编号:
NACRES:
NA.22

质量水平

检测方案

95%

形式

liquid

折射率

n20/D 1.476 (lit.)

bp

100 °C/30 mmHg (lit.)

密度

0.917 g/mL at 25 °C (lit.)

SMILES字符串

CC1C(C)C(=O)C(C)=C1C

InChI

1S/C9H14O/c1-5-6(2)8(4)9(10)7(5)3/h5,7H,1-4H3

InChI key

ARUAYSANQMCCEN-UHFFFAOYSA-N

应用

2,3,4,5-Tetramethyl-2-cyclopentenone was used in the synthesis of chiral pre-ligands, (R)-3,3′-bis(tetramethylcyclopentadienyl)-2,2′-bismethoxy-1,1′-bisnaphthalene and (R)-3-tetramethylcyclopentadienyl-2,2′-bismethoxy-1,1′-bisnaphthalene by reacting with (R)-3,3′-dilithium-2,2′-bismethoxy-1,1′-bisnaphthalene.

WGK

WGK 3

闪点(°F)

closed cup

闪点(°C)

closed cup

个人防护装备

Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)

法规信息

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Li Wang et al.
Dalton transactions (Cambridge, England : 2003), 41(24), 7350-7357 (2012-05-15)
Two new chiral pre-ligands, (R)-3,3'-bis(tetramethylcyclopentadienyl)-2,2'-bismethoxy-1,1'-bisnaphthalene (1) and (R)-3-tetramethylcyclopentadienyl-2,2'-bismethoxy-1,1'-bisnaphthalene (2), were synthesized by reaction of (R)-3,3'-dilithium-2,2'-bismethoxy-1,1'-bisnaphthalene with 2,3,4,5-tetramethyl-2-cyclopentenone at room temperature. Treatment of the pre-ligands 1 and 2 with butyllithium and Me(3)SiCl first, and subsequently with TiCl(4) (2 and 1 equiv

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