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Merck
CN

299383

Sigma-Aldrich

2,2,6-三甲基-4H-1,3-二噁英-4-酮

technical grade

别名:

双乙烯酮丙酮加合物

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About This Item

经验公式(希尔记法):
C7H10O3
CAS号:
分子量:
142.15
Beilstein:
2408
EC 号:
MDL编号:
UNSPSC代码:
12352100
PubChem化学物质编号:

等级

technical grade

折射率

n20/D 1.460 (lit.)

沸点

~275 °C (lit.)
65-67 °C/2 mmHg (lit.)

mp

12-13 °C (lit.)

溶解性

water: insoluble

密度

1.07 g/mL at 25 °C (lit.)

SMILES字符串

CC1=CC(=O)OC(C)(C)O1

InChI

1S/C7H10O3/c1-5-4-6(8)10-7(2,3)9-5/h4H,1-3H3

InChI key

XFRBXZCBOYNMJP-UHFFFAOYSA-N

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一般描述

Flash pyrolysis of 2,2,6-trimethyl-4H-1,3-dioxin-4-one generates acetylketene. It is a diketene-acetone adduct.

应用

2,2,6-trimethyl-4H-1,3-dioxin-4-one was used for acetoacetylation of aliphatic and aromatic alcohols, amines and thiols. It was also used in preparation of N-alkenyl acetoacetamides.

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Danger

危险声明

预防措施声明

危险分类

Eye Irrit. 2 - Flam. Liq. 2

储存分类代码

3 - Flammable liquids

WGK

WGK 1

闪点(°F)

57.2 °F - closed cup

闪点(°C)

14 °C - closed cup

个人防护装备

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

法规信息

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历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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Reaction of 2, 2, 6-trimethyl-4H-1, 3-dioxin-4-one with imines: an easy route to enamides.
D'Annibale A, et al.
Tetrahedron Letters, 37(41), 7429-7432 (1996)
Acetoacetylation with 2, 2, 6-trimethyl-4H-1, 3-dioxin-4-one: a convenient alternative to diketene.
Clemens RJ and Hyatt JA.
The Journal of Organic Chemistry, 50(14), 2431-2435 (1985)
David M. Birney et al.
The Journal of organic chemistry, 62(21), 7114-7120 (2001-10-24)
Acetylketene (1) was generated by flash pyrolysis of 2,2,6-trimethyl-4H-1,3-dioxin-4-one (6). The selectivities of 1 toward a number of representative functional groups were measured for the first time in a series of competitive trapping reactions. The trend in reactivities toward 1

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