93756-78-6

Basic information

• Product Name: 10-tert-Butyl-7H-benzo<1,2,4>diazaphosphol<5,1-a>isochinolin-7-on
• Synonyms: 10-tert-Butyl-7H-benzo<1,2,4>diazaphosphol<5,1-a>isochinolin-7-on
• CAS NO: 93756-78-6
• Molecular Weight: 294.293
• Mol File: 93756-78-6.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: 10-tert-Butyl-7H-benzo<1,2,4>diazaphosphol<5,1-a>isochinolin-7-on(CAS DataBase Reference)
• NIST Chemistry Reference: 10-tert-Butyl-7H-benzo<1,2,4>diazaphosphol<5,1-a>isochinolin-7-on(93756-78-6)
• EPA Substance Registry System: 10-tert-Butyl-7H-benzo<1,2,4>diazaphosphol<5,1-a>isochinolin-7-on(93756-78-6)

Safety Data

• Hazardous Substances Data: 93756-78-6(Hazardous Substances Data)

Upstream product

• 78129-68-7 2,2-dimethylpropylidynephosphine 
• 2008-77-7 2-diazoacenaphthen-1-one 

Relevant articles and documents

Phosphorus Compounds with Unusual Coordination, 19. - 1,2,4-Diazaphospholes by Cycloaddition of Diazo Compounds onto a Stable Phosphaalkyne

Diazomethyl compounds (2a-h) add regiospecifically onto the phosphaalkyne 1 to the adducts 3 which isomerize by spontaneous H-shift to the 1,2,4-diazaphospholes 4a-h.Onty at the reaction 2i+1 the H-shift is suppressed in favour of a trimethylsilyl migration (->6i).Also at the addition of α-diazo ketones 7a-e onto 1 the primary adducts 8 cannot be isolated as they isomerize by fast acyl-shift to N-acceptor-substituted diazaphospholes (9a-e).In the case of 7a-c parallel to that formation of isomers (11a-c) can be demonstrated.The corresponding reaction sequence of the phosphaalkyne 1 with cyclic α-diazo ketones (12, 14, 16, 18) makes easily accessible annelated representatives of the same structural type (13, 15, 17, 19).Phosphoryl group migrations are responsible for the formation of phosphorylated 1,2,4-diazaphospholes (24-c) at the reaction 1+20a-c.N-Acyl and -phosphoryl groups of the rearranged cycloadducts are easily solvolysed (9a-e -> 4b,c,j,k; 24a-c -> 4b,c; 13 -> 25).