No abstract

No abstract

No abstract

The study of spin-spin coupling constants across hydrogen bond provides useful information about configuration of complexes. The interesting case of such interactions was observed as a coupling across an intramolecular hydrogen bond in 8-bromo-2',3'-O-isopropylideneadenosine between the -CH2OH (at 5'' proton) group and the nitrogen atom of adenine. In this paper we report theoretical investigations on the 4hJNH coupling across the H''-C-O-H...N hydrogen bond in adenosine derivatives in various solvent models.

The reaction of benzannulated lactams with P(OEt)3 in the presence of POCl3 is found to generate mixtures of mono‐ and diphosphonates of varying structure.