91148-61-7

Upstream product

• 5100-23-2 2-isocyanatobenzoyl chloride 
• 108-88-3 toluene 
• 71526-48-2 4,4-di-p-tolyl-1,4-dihydro-2H-3,1-benzoxazin-2-one 
• 71-43-2 benzene 
• 106-38-7 para-bromotoluene 
• 134-20-3 2-carbomethoxyaniline 

Downstream Products

• 78500-70-6 2-acetamido-4',4''-dimethyltriphenylmethane 
• 78500-71-7 2-amino-4',4''-dimethyltriphenylmethane 
• 264278-02-6 o-iodophenyldi(p-tolyl)methane 
• 264278-14-0 C₂₁H₁₉Cl₂I 
• 264278-18-4 C₂₅H₁₉F₆IO₄ 

Relevant academic research and scientific papers

Synthesis of cyclic iodonium salts containing an asymmetric carbon atom

We report the synthesis of two iodonium salts with an asymmetric carbon atom in the cation, viz. 3-methyl-10H,10-(4-tolyl)dibenz[b,e]iodinium tetrafluoroborate and the salt of the same cation with the anion of (-)-mono(N-α-phenylethyl)maleic acid amide as well as the synthesis of 3-methyl-10H-dibenz[b,e]-iodinium tetrafluoroborate. 1999 KluwerAcademic/Plenum Publishers.

Friedel-Crafts Acylation of Some Aromatic Compounds with 2-Isocyanatobenzoyl Chloride

Friedel-Crafts acylation of benzene, toluene, anisole and chlorobenzene with 2-isocyanatobenzoyl chloride (1) afford either 2-aminobenzophenones (2) or 4,4-diaryl-1,2-dihydro-3,1-benzoxazin-2(4H)-ones (3) as major products depending on reaction temperature and/or substrate reactivity.Other minor products isolated are 3-aryl-1,2,3,4-tetrahydroquinazoline-2,4-diones (4), 6,12-diaryldibenzodiazocines (6) and 2-aminophenyl-α,α-diarylmethanols (7).The formation of 2 and 3 has been shown to take place via a common intermediate complex to which the cyclic 4-aryl-3,1-benzoxazinonium ion structure (12) has been assigned on the basis of its rection with methanol and 2-aminobenzophenone.While the formation of 6 occurs through the intermediate complex (12), 4-aryliminoquinazolin-2-ones (5) are formed most probably from the 1-AlCl3 complex.