19597-69-4Relevant articles and documents
Reductive Fragmentation of Tetrazoles: Mechanistic Insights and Applications toward the Stereocontrolled Synthesis of 2,6-Polysubstituted Morpholines
Duchamp, Edouard,Simard, Benoit Deschênes,Hanessian, Stephen
supporting information, p. 6593 - 6596 (2019/09/30)
A new methodology to synthesize 2,6-di-, and 2,2′,6-trisubstituted morpholines via the reduction of oxabicyclic tetrazoles under mild conditions is described. The reaction proved successful for a wide range of tetrazoles, including sterically encumbered ones harboring gem-substituents on tertiary carbon centers. The mechanism for the decades-old reduction of tetrazoles to secondary amines is elucidated.
A new metastable superconductor Li2Na1NyC60 prepared from azides
Yamasaki,Araki,Zakhidov,Mizobuchi,Yakushi,Yoshino
, p. 265 - 270 (2008/10/09)
A new metastable superconductor with nominal composition of Li2Na1NyC60 (y unknown) is prepared by thermal decomposition of lithium azide (LiN3) and sodium azide (NaN3). It is suggested that the superconducting phase in this compound is created by intercalation of the neutral spacer such as NaN3. The superconductivity is examined by a low-field signal of microwave absorption (LFS) and by SQUID. The critical temperature is estimated to be 12 K from SQUID and 14 K from LFS measurement, and the shielding fraction is over 9% at 5 K. Superconducting parameters, such as critical temperature, upper and lower critical fields, coherence length and penetration depth are evaluated and found to be distinct from those in other fulleride superconductors.