Processes for preparation of dithiocarbazates

Details Processes for preparation of dithiocarbazates Processes for preparation of dithiocarbazates

1995-02-10

1995-11-14

Ramsuer, Robert W.

Organic compounds -- part of the class 532-570 series

Organic compounds

Esters having the thiocarboxylate group, -cx-, wherein the...

C07C33328

Patent

active

054668549

ABSTRACT:
The present invention relates to a process for preparation of 5-pyrazolemercaptan derivatives represented by the following general formula (I), which is useful for synthesis of sulfonylurea-based herbicides, and an intermediate thereof, ##STR1## wherein R.sup.1 represents hydrogen, C.sub.1 -C.sub.4 alkyl, allyl or propargyl,

REFERENCES:
patent: 4064262 (1977-12-01), Serban et al.
patent: 4954164 (1990-09-01), Suzuki et al.
K. A. Jensen et al., ACTA Chemica Scandinavica 23, vol. 6, pp. 1916-1934 (1969).

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