sodium hydroxide in water boiling (10 min/aq. NaOH); formation of sodium imidobis(sulfate); treatment with concd. H2SO4;; sepn. from Na2SO4 by extraction (acetone);;
HCN in ethyl acetate byproducts: AgCN; suspension of (AgNSO2)3 in acetic ester treated with HCN (absolute exclusion of moisture); immediate introduction of dry NH3; pptn.;; (HNSO2)3 can't be isolated from soln.;;
参考文献
Hantzsch, A.; Stuer, B. C.
Ber., 1905 , vol. 38, p. 1022 - 1043
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Gmelin Handbook: S: MVol.B3, 38, page 1610 - 1612
in petroleum ether soln. of SO2Cl2 (in dry petroleum ether) is slowly dropped into liquid ammonia; hydrolysis of the intermediately formed ammoniumsalt;;
