Reactions of Substituted 2,3,7-Triazabicyclo[3.3.0]oct-2-enes and 1,2,7-Triazaspiro[4.4]non-1-enes with Halogens
作者:A. P. Molchanov、A. V. Stepakov、R. R. Kostikov
DOI:10.1007/s11178-005-0124-z
日期:2005.1
Halogenation of 1-substituted 7-aryl-2,3,7-triazabicyclo[3.3.0]oct-2-ene-6,8-diones gives different products, depending on the substituent in position 1 (R1): when R1 = Ar, 6-chloro-3-azabicyclo[3.1.0]hexanes are formed, while compounds with R1 = H or Me give rise to 2- or 4-chloro-2,3,7-triazabicyclo[3.3.0]oct-2-ene-6,8-diones whose thermolysis leads to formation of the corresponding 6-chloro-3-azabicyclo[3.1.0]hexanes. Chlorination of 7-aryl-1,2,7-triazaspiro[4.4]non-1-ene-6,8-diones yields 3-chloro-1,2,7-triazaspiro[4.4]non-1-ene-6,8-diones, and thermolysis of the latter affords 1-chloro-5-azaspiro[2.4]heptanes.
1-取代的 7-芳基-2,3,7-三氮杂双环[3.3.0]辛-2-烯-6,8-二酮的卤化会产生不同的产物,具体取决于 1 位 (R1) 上的取代基:当 R1 = Ar,6-氯-3-氮杂双环[3.1.0]己烷形成,而R1 = H或Me的化合物产生2-或4-氯-2,3,7-三氮杂双环[3.3.0]辛-2-烯-6,8-二酮,其热解导致形成相应的6-氯-3-氮杂双环[3.1.0]己烷。 7-芳基-1,2,7-三氮杂螺[4.4]壬-1-烯-6,8-二酮的氯化得到3-氯-1,2,7-三氮杂螺[4.4]壬-1-烯-6, 8-二酮,后者热解得到1-氯-5-氮杂螺[2.4]庚烷。