Process for preparing 1,2-pyrazolidine-4-yl-disulfide compound

Details Process for preparing 1,2-pyrazolidine-4-yl-disulfide compound Process for preparing 1,2-pyrazolidine-4-yl-disulfide compound

1994-09-06

1995-10-31

Ramsuer, Robert W.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D23104

Patent

active

054630754

ABSTRACT:
Novel and improved simple process for preparing a 1,2-pyrazolidine-4-yl-disulfide compound represented by the following formula: ##STR1## wherein R.sup.1 and R.sup.2 are, independently each other, a hydrogen atom or an amino-protecting group.
This compound may be prepared by reacting a compound of the formula: ##STR2## wherein R.sup.3 is an acid anion residue group, and R.sup.1 and R.sup.2 have the same meanings as above, with a disulfide compound selected from the group consisting of an alkali metal disulfide, an alkali earth metal disulfide, an ammonium disulfide and a tri-alkylammonium disulfide.

REFERENCES:
Houben-Weyl, Method, der Organ. Chemie, vol. 9, (1955), pp. 65, 66.

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