6248-74-4

Upstream product

• 92897-36-4 octahydro-[1,3]diazonine-2-thione 
• 75-09-2 dichloromethane 
• 29284-44-4 1,3-diazonan-2-one 
• 673-66-5 7-amino-heptanoic acid lactam 
• 55040-59-0 hexahydro-azocin-2-one oxime 
• 1889-06-1 8-Methoxy-2,3,4,5,6,7-hexahydro-azocin 
• 72796-10-2 1-<<(p-Tolylsulfonyl)oxy>imino>-2-azacyclooctane 
• 85237-15-6 C₈H₁₆N₂O₃S 

Downstream Products

• 85237-29-2 Phenyl-[(E)-10-phenyl-1,8,10-triaza-bicyclo[7.2.0]undec-8-en-(11Z)-ylidene]-amine 
• 99234-04-5 (Z)-10,10-Diphenyl-1,8-diaza-bicyclo[7.2.0]undec-8-en-11-one 
• 85237-28-1 (E)-10-Phenyl-1,8,10-triaza-bicyclo[7.2.0]undec-8-en-11-one 

Relevant academic research and scientific papers

Synthesis and Reactions of Cyclic Carbodiimides

Modified Tiemann rearrangement on cyclic amidoxime O-methanesulfonates 4 has been used to synthesize cycloalkylene carbodiimides 1 and 4,5,6,7-tetrahydrobenzo-1,3-diazonine (1g). 1,3-Diazacycloocta-1,2-diene (1b), n=5) was also prepared by dehydrosulfuration of pentamethylenethiourea. cycloadducts of the type 20 and 21 are readily formed from 1 as well as 1g with aryl isocyanates and N,N'-diphenylcarbodiimide.Hexafluoroacetone and 1d (n=7) give a dioxazane, 24b (n=7), while 1c (n=6) produces inseparable mixtures of 24a (n=6) and oxazetidine 23. 1,3-Diazacyclohepta-1,2-diene (1a, n=4) oligomerizes on preparation from tetramethylenethiourea, giving predominantly cyclodimer 7 and trimer 8 (not isolated); it can also be trapped with N,N'-diphenylcarbodiimide to give 20a (n=4, X=NC6H5).