28736-09-6Relevant articles and documents
A facile synthesis of (Z)-1, 6-disubstituted-7H-benzo[b][1,5]diazonin-7-one derivatives via arylation-allylation-RCM pathway of anthranilamide and isatoic anhydride
Novanna, Motakatla,Kannadasan, Sathananthan,Shanmugam, Ponnusamy
supporting information, (2019/09/30)
A facile and efficient method has been developed for the synthesis of (Z)-6-allyl-1-phenyl-1,2,5,6-tetrahydro-7H-benzo[b][1,5]diazonin-7-one and (Z)-1,6-diphenyl-1,2,5,6-tetrahydro-7H-benzo[b][1,5]diazonin-7-one from anthranilamide via N-arylation/N-allylation and from isatoic anhydride via ring opening/N-arylation/N-allylation followed by ring closing metathesis using Grubbs-II catalyst as a key step. Grubbs-II catalyst was found to be superior over Grubbs-I catalyst in terms of reaction time and yield of the product, and the routes developed were suitable to synthesize benzo fused nine membered nitrogen heterocycles. The requirement of diallylated substrates with protected amine and amide nitrogen is suitable for RCM has been established for the synthesis of diazoninone derivatives.
Nickel(0)-Catalyzed N-Allylation of Amides and p-Toluenesulfonamide with Allylic Alcohols under Neat and Neutral Conditions
Azizi, Mohamed Salah,Edder, Youssef,Karim, Abdallah,Sauthier, Mathieu
, p. 3796 - 3803 (2016/08/16)
Nickel(0)-catalyzed direct N-allylation of amides and p-toluenesulfonamide with allylic alcohols took place in the presence of Ni0–diphosphine complexes. The corresponding N-allylated (and/or N,N-diallylated) products were obtained in moderate to high yields under neutral conditions.
An improved method of synthesis of precursors for amino-Claisen rearrangement
Jain, Seema,Pandey, Neelesh,Kishore
, p. 1052 - 1054 (2007/10/03)
N-Allylarylamines are useful precursors in amino-Claisen rearrangements affording 2-allylarylamines in one step. An improved method for the synthesis of a series of N-allylarylamines (2a-h) has been described.
Regioselective preparation of 1-(bromomethyl)-5H-thiazolo[3,2- a]quinazolin-5-ones and analogous 5H-thieno[3,2-e]thiazolo[3,2-a]pyrimidin-5- ones from fused 2-(alkenylthio)pyrimidin-4-ones
Wippich, Petra,Gu?tschow, Michael,Leistner, Siegfried
, p. 714 - 720 (2007/10/03)
A convenient procedure for the regioselective preparation of polycyclic angular thiazolo[3,2-a]pyrimidin-5-ones is reported. 2- (Alkenylthio)quinazolin-4(3H)-ones and analogues thieno[2,3-d]pyrimidines were treated with bromine in acetic acid to obtain I-
The Stereochemistry of Organometallic Compounds. XLI. The Preparation of Quinazolines and Quinazolinones Involving Rhodium-Catalysed Hydroformylation of Alkenyl Anilines
Campi, Eva M.,Jackson, W. Roy,McCubbin, Quentin J.,Trnacek, Andrew E.
, p. 1061 - 1070 (2007/10/02)
Rhodium-catalysed reactions of ortho-alkenylaminobenzylamines or benzamides with H2/CO give quinazolines and quinazolinones containing a fused alicyclic ring in excellent yields.Reactions of N-allyl derivatives give a single regioisomer.Reactions of but-3
