Processes for preparation of 5-pyrazolemercaptan derivatives

Details Processes for preparation of 5-pyrazolemercaptan derivatives Processes for preparation of 5-pyrazolemercaptan derivatives

1994-11-15

1995-05-16

Ramsuer, Robert W.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

558233, C07D23118

Patent

active

054162203

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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