caa a22 4500 467919615 CHVBK 20180406152913.0 cr unu---uuuuu 170328e20061201xx s 000 0 eng 10.1007/s00706-006-0545-6 doi (NATIONALLICENCE)springer-10.1007/s00706-006-0545-6 An Efficient and Convenient Synthesis of 2-Thio[1,2,4]triazolo[1,5- c ]quinazoline and its Derivatives [Elektronische Daten] [Alexandr V. Karpenko, Sergey I. Kovalenko, Svetlana V. Shishkina, Oleg V. Shishkin] Summary.: 4-Hydrazinoquinazoline with carbon disulfide underwent a recyclization reaction. The title compound 2-thio[1,2,4]triazolo[1,5-c]quinazoline was obtained after treatment of 4-hydrazinoquinazoline with potassium ethylxanthogenate via a facile in situ Dimroth-like rearrangement of the expected [4,3-c] system. Its structure was established by X-ray diffraction study and confirmed by an independent synthesis, starting from o-aminobenzonitrile. Springer-Verlag, 2006 Keywords. Crystallographic structure analysis nationallicence Cyclization nationallicence 4-Hydrazinoquinazoline nationallicence Rearrangement nationallicence 2-Thio[1,2,4]triazolo[1,5- c ]quinazoline nationallicence Karpenko Alexandr V. Department of Pharmaceutical Chemistry, Zaporozhye State Medical University, Zaporozhye, Ukraine aut Kovalenko Sergey I. Department of Pharmaceutical Chemistry, Zaporozhye State Medical University, Zaporozhye, Ukraine aut Shishkina Svetlana V. STC "Institute for Single Crystals”, National Academy of Sciences of Ukraine, Kharkiv, Ukraine aut Shishkin Oleg V. STC "Institute for Single Crystals”, National Academy of Sciences of Ukraine, Kharkiv, Ukraine aut Monatshefte für Chemie / Chemical Monthly Springer-Verlag 137/12(2006-12-01), 1543-1549 0026-9247 137:12<1543 2006 137 706 https://doi.org/10.1007/s00706-006-0545-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00706-006-0545-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Karpenko Alexandr V. Department of Pharmaceutical Chemistry, Zaporozhye State Medical University, Zaporozhye, Ukraine aut NATIONALLICENCE 700 1- Kovalenko Sergey I. Department of Pharmaceutical Chemistry, Zaporozhye State Medical University, Zaporozhye, Ukraine aut NATIONALLICENCE 700 1- Shishkina Svetlana V. STC "Institute for Single Crystals”, National Academy of Sciences of Ukraine, Kharkiv, Ukraine aut NATIONALLICENCE 700 1- Shishkin Oleg V. STC "Institute for Single Crystals”, National Academy of Sciences of Ukraine, Kharkiv, Ukraine aut NATIONALLICENCE 773 0- Monatshefte für Chemie / Chemical Monthly Springer-Verlag 137/12(2006-12-01), 1543-1549 0026-9247 137:12<1543 2006 137 706 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer