Abstract: Novel herbicidal tetrazolinone derivatives of the formula ##STR1## and intermediates therefor of the formula ##STR2## wherein R.sup.1 is alkyl substituted by halogen, andR.sup.2 and R.sup.3 each independently is alkyl, alkenyl, alkynyl, cycloalkyl, phenyl or substituted phenyl, orR.sup.2 and R.sup.3 together with the N-atom to which they are attached, which may form a 5- or 6-membered heterocyclic ring.

Abstract: Herbicidal tetrazolinone derivatives of the formula: ##STR1## in which R.sup.1 is alkyl, haloalkyl, cycloalkyl, alkenyl, haloalkenyl, alkynyl or phenyl, andR.sup.2 is alkyl, haloalkyl, cycloalkyl, alkenyl, haloalkenyl, alkynyl or phenyl, orR.sup.1 and R.sup.2 together with the nitrogen atom to which they are bonded form an optionally benzofused heterocyclic ring, which is optionally substituted by C.sub.1-4 alkyl,n is 0, 1, 2 or 3, andR.sup.3 each independently is nitro, halogen, alkyl, haloalkyl, alkylthio or phenoxy.

Abstract: Herbicidal 1-alkenyltetrazolinones of the formula: ##STR1## wherein R.sup.1 represents the group: ##STR2## or the group: ##STR3## R.sup.2 and R.sup.3, independently of one another, represent C.sub.1-6 alkyl, C.sub.3-7 cycloalkyl which may optionally be substited by methyl, C.sub.2-4 alkenyl, C.sub.2-5 alkynyl, phenyl which may optionally be substituted or aralkyl which may optionally be substituted, orR.sup.2 and R.sup.3 may optionally form, together with the N-atom to which they are bonded, a heterocyclic ring which may optionally be substituted, and novel intermediates therefor.

Abstract: Herbicidal 1-cyclopropyl tetrazolinones of the formula ##STR1## wherein X represents C.sub.1-3 alkyl, C.sub.2-4 alkenyl or halogen,n represents 0 to 5,R.sup.1 and R.sup.2 each independently represents C.sub.1-6 alkyl, C.sub.2-6 alkenyl, C.sub.2-6 alkynyl, C.sub.3-7 cycloalkyl which may optionally be substituted by C.sub.1-3 alkyl, epoxy-C.sub.3-5 alkan-1-yl, phenyl which may optionally be substituted, or aralkyl which may optionally be substituted, orR.sup.1 and R.sup.2 together with the N-atom to which they are attached, represent a cyclic ring which may be substituted, and some novel intermediates therefor.

Abstract: Herbicidal tetrazolinone derivatives of the formula: ##STR1## in which R.sup.1 is alkyl, haloalkyl, cycloalkyl, alkenyl, haloalkenyl, alkynyl or phenyl, andR.sup.2 is alkyl, haloalkyl, cycloalkyl, alkenyl, haloalkenyl, alkynyl or phenyl, orR.sup.1 and R.sup.2 together with the nitrogen atom to which they are bonded form an optionally benzofused heterocyclic ring, which is optionally substituted by C.sub.1-4 alkyl,n is 0, 1, 2 or 3, andR.sup.3 each independently is nitro, halogen, alkyl, haloalkyl, alkylthio or phenoxy.

Abstract: A herbicide for paddy field comprising sulphonylaminophenyluracil derivative as an active ingredient which is represented by the formula (I): ##STR1## wherein R.sup.1 represents hydrogen or methyl,R.sup.2 represents C.sub.1-5 alkyl, fluro-substituted C.sub.1-2 alkyl or C.sup.3-6 cycloalkyl,optionally applied in combination with another herbicide.

Abstract: Herbicidal novel tetrazolinone derivatives of the formula: ##STR1## wherein R.sup.1 is alkyl, haloalkyl, cycloalkyl, alkenyl, haloalkenyl, alkynyl, alkoxy or phenyl which is optionally substituted, andR.sup.2 is alkyl, haloalkyl, cycloalkyl, alkenyl, haloalkenyl, alkynyl, alkoxy or phenyl which is optionally substituted, orR.sup.1 and R.sup.2 form, together with the nitrogen atom to which R.sup.1 and R.sup.2 are bonded, a 5- or 6-membered heterocyclic ring, optionally fused to a carbocyclic ring optionally and independently substituted by C.sub.1-4 alkyl, andR.sup.3 is a 5-membered heterocyclic radical containing at least one hereto atom selected from the group consisting of nitrogen, oxygen, and sulfur, optionally substituted by at least one substitutent selected from the group consisting of halogen, benzyl, phenyl, halogen-substituted phenyl, C.sub.1-4 alkyl, C.sub.1-4 alkoxy, C.sub.1-4 haloalkyl, C.sub.1-4 haloalkoxy, C.sub.1-4 alkylthio, C.sub.1-4 alkyl-sulfonyl and C.sub.