346693-19-4Relevant academic research and scientific papers
A synthesis of N-bridged 5,6-bicylic pyridines via A mild cyclodehydration using the Burgess reagent and discovery of A novel carbamylsulfonylation reaction
Li, Jie Jack,Li, James J.,Li, Jun,Trehan, Ashok K.,Wong, Henry S.,Krishnananthan, Subramanian,Kennedy, Lawrence J.,Gao, Qi,Ng, Alicia,Robl, Jeffrey A.,Balasubramanian, Balu,Chen, Bang-Chi
supporting information; experimental part, p. 2897 - 2900 (2009/05/30)
(Chemical Equation Presented) Cyclodehydration using the Burgess reagent provided a novel approach toward the synthesis of N-bridged 5,6-bicylic pyridines including pyrolo-, imidazo-, and triazolopyridines under mild and neutral conditions. The methodology tolerates acid-sensitive functional groups. A novel addition product was observed between the resulting pyrrolo- or imidazopyridine and an additional equivalent of the Burgess reagent, producing the corresponding sulfonylcarbamate adduct.
Molecular design of the polymer forming the complex with metal. Part IV. Complexation of pyridine-containing polyisoprene with zinc
Moriguchi,Tsugaru,Amiya
, p. 205 - 213 (2007/10/03)
Two types of polyisoprenes modified by N-pyrid-2-ylmethyl amide (MPY) group were synthesized, and their complexation with ZnCl2 and the thermal property of complexes were investigated. Although these polymers are viscous liquid, the complex is solid at room temperature. MPY modified polyisoprene in which MPY connected a main chain without a spacer (MPYIP) shows the non-stoichiometric complexation, so that the melting temperature of the complex is low (105°C). On the other hand, MPY modified polyisoprene with a C5 spacer (MPYC5IP) shows the high melting temperature (143°C). It is surprising that the glass-transition temperatures of the complexes are almost as same as that of polyisoprene. These results indicate that the presence of the spacer effectively enhances the aggregation of polymers. As a result, MPY is a novel functional structure, since MPY-ZnCl2 complex functions as an excellent hard-segment in various flexible polymers.
