Formylation Products of Thioamides; VII1. Synthesis of NewN-(3-Aminothioacryloyl)-formamidines andN,N′-Bis[aminomethylidene]thioureas by Bisiminoformylation of Thioacetamides and Thiourea with Formamide Acetals
Formylation Products of Thioamides; VII<sup>1</sup>. Synthesis of New<i>N</i>-(3-Aminothioacryloyl)-formamidines and<i>N</i>,<i>N</i>′-Bis[aminomethylidene]thioureas by Bisiminoformylation of Thioacetamides and Thiourea with Formamide Acetals