A hydrazide compound represented by the formula (1):
(wherein R
1
, R
2
, R
3
, R
4
, A
1
, A
2
, J, Q and n are defined in the specification) has excellent pesticidal activity.
The reaction of some Halogenated Pyridine Thioethers and sulphones with carbon disulphide
作者:A. D. Dunn、R. Norrie
DOI:10.1002/prac.19933350309
日期:——
Dithiocarboxylation of some halogenated pyridine sulphones with carbon disulphide and sodium hydride leads to the formation of thiomethyl derivatives via Smiles rearrangement of the inititially produced dianion, fragmentation and subsequent methylation. In one instance the pyridino[2,3-b]-1,4-dithiine 7 was obtained. The thioether 2d was also converted into a thiomethyl derivative when subjected to the same reaction sequence.