911371-11-4

Basic information

• Product Name: 6H-diquino[3,2-b;2',3'-e][1,4]thiazine
• Synonyms: 6H-diquino[3,2-b;2',3'-e][1,4]thiazine
• CAS NO: 911371-11-4
• Molecular Weight: 301.371
• Mol File: 911371-11-4.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 6H-diquino[3,2-b;2',3'-e][1,4]thiazine(CAS DataBase Reference)
• NIST Chemistry Reference: 6H-diquino[3,2-b;2',3'-e][1,4]thiazine(911371-11-4)
• EPA Substance Registry System: 6H-diquino[3,2-b;2',3'-e][1,4]thiazine(911371-11-4)

Safety Data

• Hazardous Substances Data: 911371-11-4(Hazardous Substances Data)

Upstream product

• 68844-43-9 2,2'-dichloro-3,3'-diquinolinyl sulfide 
• 108-95-2 phenol 

Downstream Products

• 911371-16-9 6-benzyldiquinothiazine 
• 943833-51-0 6-phenacyldiquinothiazine 
• 911371-21-6 6-(4'-nitrophenyl)diquinothiazine 

Relevant articles and documents

Synthesis of new pentacyclic diquinothiazines

(Chemical Equation Presented) Reactions of 2,2′-dichloro-3,3′- diquinolinyl sulfide 1 with ammonia derivatives and various primary alkylamines and arylamines proceeded as a thiazine ring closure to form linear annulated pentacyclic 6H-diquinothiazine 2H and 6-substituted derivatives 2 with alkyl, alkylaryl, aryl and heteroaryl substituents in moderate to good yields. Reaction with 2-chloroethylamine did not stop at the formation of half-mustard derivative 2k but ran to ethylenediquinothiazinium salt 11. 6H-Diquinothiazine 2H was N-alkylated and N-arylated to give 6-substituted derivatives 2. The crucial substrate 1 was obtained from other heteropentacenes 3 and 4 via 1,4-dithiin ring opening and further transformations. X-ray analysis of p-nitrophenyldiquinothiazine 2i revealed unexpected planar thiazine ring.