55239-61-7

Upstream product

• 75-44-5 phosgene 
• 770-40-1 N-(4-chlorophenyl)-N-isopropylamine 
• 32315-10-9 bis(trichloromethyl) carbonate 
• 106-47-8 4-chloro-aniline 

Downstream Products

• 286416-44-2 N-(4-chlorophenyl)-N-(1-methylethyl)-4-[(2-methylphenyl)methyl]-3,5-dioxo-1,2,4-oxadiazolidine-2-carboxamide 
• 286416-45-3 N-(4-chlorophenyl)-4-methyl-N-(1-methylethyl)-3,5-dioxo-1,2,4-oxadiazolidine-2-carboxamide 
• 1350911-39-5 (Z)-1,2-diphenylvinyl 4-chlorophenylisopropylcarbamate 
• 1226878-34-7 1-(4-chlorophenyl)-3-methyl-1-phenylbutan-1-ol 
• 1350911-19-1 1-iodovinyl 4-chlorophenylisopropylcarbamate 
• 1350911-43-1 5,5-dimethylhex-1-en-3-yn-2-yl 4-chlorophenylisopropylcarbamate 
• 1350911-69-1 1-(4-chlorophenyl)-1-phenylhexan-1-ol 
• 1350911-71-5 1-(4-chlorophenyl)-3-methyl-1-phenylpentan-1-ol 
• 1350911-73-7 1-(4-chlorophenyl)-3,3-dimethyl-1-phenylbutan-1-ol 
• 1350911-13-5 vinyl 4-chlorophenylisopropylcarbamate 
• 1350911-27-1 1-phenylvinyl 4-chlorophenylisopropylcarbamate 

Relevant academic research and scientific papers

Tertiary alcohols by tandem β-carbolithiation and N→C aryl migration in enol carbamates

Enol carbamates (O-vinylcarbamates) derived from aromatic or α,β-unsaturated compounds and bearing an N-aryl substituent undergo carbolithiation by nucleophilic attack at the (nominally nucleophilic) β position of the enol double bond. The resulting carbamate-stabilized allylic, propargylic, or benzylic organolithium rearranges with N→C migration of the N-aryl substituent, creating a quaternary carbon α to O. The products may be readily hydrolyzed to yield multiply branched tertiary alcohols in a one-pot tandem reaction, effectively a polarity-reversed nucleophilic β-alkylation-electrophilic α-arylation of an enol equivalent.

Process for the preparation of 1-4-disubstituted-5 (4H)-tetrazolinones

1,4-Disubstituted-5(4H)-tetrazolinones of the formula (I) STR1 wherein R1, R2 and R3 have the meanings given in the specification), which are known to be useful as herbicides, can be obtained in very good yields by reacting the corresponding 1-substituted-5(4H)-tetrazolinones with the corresponding carbamoyl chlorides in the presence of 4-dimethylaminopyridine.