ChemicalBook CAS DataBase List 5-DIAZOMELDRUM'S ACID

5-DIAZOMELDRUM'S ACID synthesis

4synthesis methods

Product Name:5-DIAZOMELDRUM'S ACID
CAS Number:7270-63-5
Molecular formula:C6H8N2O4
Molecular Weight:172.14

Most commonly by diazo transfer to Meldrum's acid. A number of procedures involving the use of sulfonyl azide reagents have been reported.Typical procedures involve the addition of the sulfonyl azide to a solution of Meldrum's acid containing a tertiary amine base. Aqueous workup followed by chromatography on silica gel provide the diazo compound in yields ranging from 40 to 76%. A modification using KF on alumina is reported to provide a 90% yield of 5-Diazomeldrum's acid. Diazo compounds are potentially explosive as are certain sulfonyl azides, such as tosyl azide. For this reason, extreme care must be observed in the synthesis and use of this compound, with all operations being conducted behind a blast shield in a fume hood.

2033-24-1 Synthesis

2033-24-1
654 suppliers
$6.00/25g

7270-63-5
52 suppliers
$45.00/50mg

Yield: 100%

Reaction Conditions:

with N,N,N,N,N,N-hexamethylphosphoric triamide;4-toluenesulfonyl azide;triethylamine for 3 h;Ambient temperature;

References:

Benati, Luisa;Montevecchi, P. Carlo;Spagnolo, Piero [Gazzetta Chimica Italiana,1992,vol. 122,# 5-7,p. 249 - 251]

67-56-1 Synthesis

67-56-1
803 suppliers
$7.29/5ml-f

5,7-Dioxa-1,2-diazaspiro[2.5]oct-1-ene-4,8-dione, 6,6-dimethyl-

68695-08-9
0 suppliers
inquiry

75-18-3
416 suppliers
$18.10/8208330005

7270-63-5
52 suppliers
$45.00/50mg

Ethanamine, N-[(3,5-dichlorophenyl)methylene]-2,2-diethoxy-

1000210-73-0
0 suppliers
inquiry

1,3-Dioxolane-4-carboxylic acid, 2,2-dimethyl-5-oxo-, methyl ester

62609-79-4
0 suppliers
inquiry

References

67-56-1 Synthesis

67-56-1
803 suppliers
$7.29/5ml-f

68695-08-9
0 suppliers
inquiry

7270-63-5
52 suppliers
$45.00/50mg

2033-24-1 Synthesis

2033-24-1
654 suppliers
$6.00/25g

62609-79-4
0 suppliers
inquiry

References

67-56-1 Synthesis

67-56-1
803 suppliers
$7.29/5ml-f

68695-08-9
0 suppliers
inquiry

7270-63-5
52 suppliers
$45.00/50mg

62609-79-4
0 suppliers
inquiry

References

5-DIAZOMELDRUM'S ACID Related Search:

2,2-Dimethyl-1,3-dioxane-4,6-dione

HomePage | About Us | Member Companies | Advertising | Contact us | Previous WebSite | MSDS | CAS Index | CAS DataBase | Product Catalog | Links | Privacy | Terms | Product Manufacturers | New Products
All products displayed on this website are only for non-medical purposes such as industrial applications or scientific research, and cannot be used for clinical diagnosis or treatment of humans or animals. They are not medicinal or edible.
According to relevant laws and regulations and the regulations of this website, units or individuals who purchase hazardous materials should obtain valid qualifications and qualification conditions.

一二三四区视频,亚洲少妇熟女色,日本久热无码视频网,欧美国产日韩大尺度,亚洲a视频,久久少妇一区二区,日韩999无码视频,刺激久久久久久久,啊啊啊啊不要啊在线

5-DIAZOMELDRUM'S ACID synthesis

5-DIAZOMELDRUM'S ACID Related Search: