๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

A new synthetic route to 1-chlorophenazines. The electrochemical monodechlorination of 3,3,6,6-tetrachloro-1,2-cyclohexanedione as a key step

โœ Scribed by Antonio Guirado; Alfredo Cerezo; Raquel Andreu

Publisher
Elsevier Science
Year
2000
Tongue
French
Weight
123 KB
Volume
41
Category
Article
ISSN
0040-4039

No coin nor oath required. For personal study only.

โœฆ Synopsis

A convenient new method for the synthesis of 1-chlorophenazines has been established. The ยฎrst step involves an almost quantitative electrochemical reduction of 3,3,6,6-tetrachloro-1,2-cyclohexanedione 1 to 3,6,6-trichloro-2-hydroxy-2-cyclohexen-1-one 2. The reaction of 2 with aromatic 1,2-diamines followed by aromatisation through treatment with 2,6-lutidine leads to the title compounds in high yields.

๐Ÿ“œ SIMILAR VOLUMES

A new synthetic route to 2-oxazolines. T
A new synthetic route to 2-oxazolines. The electrochemical reduction of N-(2,2-dichloroethyl)amides as a key step
โœ Antonio Guirado; Raquel Andreu; Jesรบs Gรกlvez ๐Ÿ“‚ Article ๐Ÿ“… 1998 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 222 KB

A convenient new method for the synthesis of 2-oxazolines has been established involving the preparation of N-(2,2-dichloroethyl)amides followed by electrochemical reductive cyclizafions. It has been applied successfully in preparing pa'eviously unknown 4-a&ylamino-2-phenyl-2-oxazofines in fair to g

A New Synthetic Route to 1,3,5-Triamino-
A New Synthetic Route to 1,3,5-Triamino-2,4,6-Trinitrobenzene (TATB)
โœ Anthonyโ€…J. Bellamy; Simonโ€…J. Ward; Peter Golding ๐Ÿ“‚ Article ๐Ÿ“… 2002 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 378 KB ๐Ÿ‘ 2 views

A new, three-stage synthesis of 1,3,5-triamino-2,4,6-trinitrobenzene (TATB) has been developed which avoids the use of halogenated precursors or reagents. The starting material, 1,3,5trihydroxy-benzene, is converted via the sequence nitrationalkylation-amination to TATB in an overall yield of 87%. T