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Merck

389579

Sigma-Aldrich

δ-戊内酯

technical grade

别名:

四氢-2H-2-吡喃酮

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About This Item

经验公式(希尔记法):
C5H8O2
CAS号:
分子量:
100.12
Beilstein:
106436
EC號碼:
MDL號碼:
分類程式碼代碼:
12352100
PubChem物質ID:
NACRES:
NA.22

等級

technical grade

形狀

liquid

雜質

<25% polymer

折射率

n20/D 1.457 (lit.)

bp

226-229 °C (lit.)
58-60 °C/0.5 mmHg (lit.)

mp

−13-−12 °C (lit.)

密度

1.079 g/mL at 25 °C (lit.)

儲存溫度

−20°C

SMILES 字串

O=C1CCCCO1

InChI

1S/C5H8O2/c6-5-3-1-2-4-7-5/h1-4H2

InChI 密鑰

OZJPLYNZGCXSJM-UHFFFAOYSA-N

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應用

δ-戊内酯(四氢-2H-2-吡喃酮或 δ VL)可作为单体单元,用于通过开环聚合反应合成聚δ-戊内酯聚共轭酯。
它也可以用作合成(+)-瓜二酸 、δ-羟基戊酸酯钠 、甲基δ-羟基戊酸酯 和5-羟基戊醛的原料。

象形圖

Corrosion

訊號詞

Danger

危險聲明

危險分類

Eye Dam. 1

儲存類別代碼

10 - Combustible liquids

水污染物質分類(WGK)

WGK 1

閃點(°F)

233.6 °F - closed cup

閃點(°C)

112 °C - closed cup

個人防護裝備

Eyeshields, Gloves, type ABEK (EN14387) respirator filter


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Ryo Shintani et al.
Organic letters, 14(9), 2410-2413 (2012-04-26)
A palladium-catalyzed decarboxylative cyclopropanation of γ-methylidene-δ-valerolactones with aromatic aldehydes has been developed to give 4-oxaspiro[2.4]heptanes with high selectivity. The site of nucleophilic attack to a π-allylpalladium intermediate has been controlled with a sterically demanding phosphine ligand. The course of the
Diphenyl phosphate as an efficient cationic organocatalyst for controlled/living ring-opening polymerization of δ-valerolactone and ε-caprolactone
Makiguchi K, et al.
Macromolecules, 44(7), 1999-2005 (2011)
K N Houk et al.
The Journal of organic chemistry, 73(7), 2674-2678 (2008-03-08)
gamma-Butyrolactone, unlike delta-valerolactone, does not polymerize despite a strain energy of approximately 8 kcal mol-1 which could be relieved by opening the s-cis lactone ester bond to an s-trans ester bond in the polymer. To explain this anomaly, we have
Organolanthanide-initiated living polymerizations of ε -caprolactone, δ-valerolactone, and β-propiolactone
Yamashita M, et al.
Macromolecules, 29(5), 1798-1806 (1996)
Zuwei Ma et al.
Biomacromolecules, 12(9), 3265-3274 (2011-07-16)
Biodegradable polyurethane urea (PUU) elastomers are ideal candidates for fabricating tissue engineering scaffolds with mechanical properties akin to strong and resilient soft tissues. PUU with a crystalline poly(ε-caprolactone) (PCL) macrodiol soft segment (SS) showed good elasticity and resilience at small

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