Several routes are known for the preparation of thioformamide, eg a) by interaction of formamide with P, S,,? b) by reaction of ethyl thioformate with gaseous ammonia: and c) by interaction4 of hydrogen cyanide and hydrogen sulfide in the presence of triethylamine., All of these methods are either inconvenient to carry out or require a high degree of care and caution. We anticipated that with the use of sodium cyanide and sodium sulfide in the ...
