Processes for preparation of 5-pyrazolemercaptan derivatives and

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

1993-12-15

1995-04-11

Ramsuer, Robert W.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D23118

Patent

active

054059658

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 sulfonyl-urea-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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