98377-35-6

Usage

InChI:InChI=1/C7H5ClN4O/c8-5-3-1-2-4-6(5)12-7(13)9-10-11-12/h1-4H,(H,9,11,13)

Upstream product

• 3320-83-0 o-chlorophenyl isocyanate 
• 2740-81-0 2-chlorophenylisothiocyanate 
• 22347-28-0 1-(2-chloro-phenyl)-1,4-dihydro-tetrazole-5-thione 

Downstream Products

• 154463-84-0 1-(2-chlorophenyl)-4-(N,N-diethylcarbamoyl)-5(4H)-tetrazolinone 
• 158237-07-1 fentrazamide 

Relevant academic research and scientific papers

Reactions of dimethyl 2-chloroethynylphosphonate with 1-substituted 5-oxo-1H-1,2,3,4-tetrazoles

Addition of 1-substituted tetrazol-5-ones to dimethyl 2-chloroethynylphosphonate occurred regioselectively to form new geminally substituted bis(4-R-5-oxo-4,5-dihydro-1H-tetrazol-1-yl)ethenylphosphonates with 65- 92% yield.

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.

Process for producing 1-(2-chlorophenyl)-5(4H)-tetrazolinone

STR1 The intermediate is new. The reactions are also new and may be effected separately or as a one-pot process without isolation or purification of the intermediate.

Herbicidally active tetrazolinones

Selective herbicidal tetrazolinones of the formula STR1 wherein X is hydrogen or halogen, Y is hydrogen or C1-4 alkyl, R1 is C1-4 alkyl, and R2 is cycloheptyl or cyclooctyl. and synergistic mixtures thereof.

Process for the production of 1-substituted-5(4H)-tetrazolinones

1-Substituted-5(4H)-tetrazolinones of the formula (I) STR1 wherein R is alkyl, haloalkyl, cycloalkyl, phenyl, substituted phenyl or aralkyl, are obtained in very good yields by reacting, in a polar solvent, an isocyanate of the formula R-NCO (II) with sod

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

A process for the preparation of a 1-substituted-5(4H)-tetrazolinone of the formula STR1 wherein R1 is defined in the specification n is 0, 1, 2, 3 or 4, which comprises reacting a 1-substituted-5(4H)-tetrazolinethione of the formula STR2 with an ethylene oxide of the formula STR3 wherein R2 represents hydrogen, methyl or ethyl, in the presence of a base and in the presence of water, an alcohol or a mixture thereof.

Tetrzolinone herbicides

Novel tetrazolinones of the formula (I) STR1 wherein X is chlorine or bromine, Y is hydrogen, chlorine, bromine, methyl or ethyl, and R1 and R2 are the same or different C2-4 alkyl, a process for their preparation, and the use of the new compounds as herbicides, especially against paddy-weeds.