64718-13-4

Upstream product

• 1885-29-6 anthranilic acid nitrile 
• 407-25-0 trifluoroacetic anhydride 
• 62-53-3 aniline 
• 615-43-0 2-iodophenylamine 
• 544-92-3 copper(I) cyanide 
• 143321-89-5 2,2,2-trifluoro-N-(2-iodophenyl)acetamide 
• 354-32-5 trifluoracetyl chloride 

Downstream Products

• 107288-98-2 4-phenyl-2-(trifluoromethyl)quinazoline 
• 52353-35-2 4-chloro-2-trifluoromethyl quinazoline 
• 607-68-1 2,4-dichloroquinazoline 
• 1885-29-6 anthranilic acid nitrile 

Relevant academic research and scientific papers

Pd-Catalyzed tandem reaction of N-(2-cyanoaryl)benzamides with arylboronic acids: synthesis of quinazolines

The synthesis of 2,4-disubstituted quinazolines by a palladium-catalyzed reaction of arylboronic acids with N-(2-cyanoaryl)benzamides has been developed with moderate to excellent yields. The method shows good functional group tolerance. In particular, ha

Copper-catalyzed oxidative ring closure of ortho-cyanoanilides with hypervalent iodonium salts: Arylation-ring closure approach to iminobenzoxazines

A novel, highly modular synthetic methodology with high functional group tolerance was developed for the construction of iminobenzoxazine derivatives from ortho-cyanoanilides and diaryliodonium triflates via an oxidative arylation-cyclization path. The reaction is supposed to involve the formation of highly active aryl-copper(III) species. In this novel transformation, copper(II) triflate was used as catalyst in 1,2-dichloroethane or ethyl acetate and the reaction takes place at 75 °C in 2-16 h.

Acetonitrile-mediated synthesis of 2,4-dichloroquinoline from 2-ethynylaniline and 2,4-dichloroquinazoline from anthranilonitrile

2,4-Dichloroquinolines and 2,4-dichloroquinazolines were synthesized from 2-ethynylanilines and anthranilonitriles, respectively, using diphosgene in acetonitrile and heating at 130 °C or 150 °C for 12 hours. This reaction was applied to the synthesis of 4,6-dichloropyrazolo[3,4-d]pyrimidine (dichloro-9H-isopurine). The postulated mechanism is also described. Georg Thieme Verlag Stuttgart.

Pharmaceutically active compounds

Compounds of formula (I) wherein: R1 and R19 independently represent hydrogen, alkyl C1-6, alkoxy C1-6, alkylthio C1-6, halogen, hydroxyl or amino; R2 represents H or alkyl; R3 represents phenyl, a 6-membered heterocyclic aromatic ring containing one or two nitrogen atoms, or a 5-membered heterocyclic aromatic ring containing 1 to 3 heteroatoms selected from O,N, and S, which phenyl or heterocyclic aromatic ring may be optionally substituted by alkyl C1-6, alkoxy C1-6, haologen, hydroxyl, alkylthio C1-6, cyano, trifluoromethyl, nitro, hydroxymethyl, amino, a group --(CH2)c NHCO2 R10, a group --(CH2)c NR5 R6, or a group --CO2 R11 ; or R3 represents hydrogen or alkyl C1-8, which alkyl group may be optionally substituted by amino or a group --NHCO2 R10 ; R4 represents hydrogen or alkyl C1-6; or R3 and R4 taken together represent a group (CH2)a Z(CH2)b ; c represents an integer 0 to 2; and pharmaceutically acceptable salts thereof, have been found to be useful as a pharmaceuticals. The compounds may especially be used in the treatment of inflammatory disorders.

SYNTHESE ET CARACTERISTIQUES SPECTRALES DE F-ALKYL-2-DIHYDRO-3,4 OXO-4 QUINAZOLINES

In this paper we report the preparation of a series of 4(3H) quinazolinones substituted in the 2 position by a linear perfluoroalkyl-chain with RF as Cn F2n+1 (n=1,3,5,7).These compounds are obtained in two steps, action of F-acid chlorides on 2-aminobenzonitrile which affords the corresponding F-amides followed by cyclization of this intermediate with alkaline hydrogen peroxide.We isolated a reaction intermediate in the cyclization of N-(2-cyanophenyl)F-octanamide.All compounds were identified by the usual spectroscopic methods (IR, NMR 1H, 19F, mass spectrometry).