Contents to Volume 40

Volume Contents

Contents to Volume 40     

Unusual Fragmentation and Transformation of an N‐Heterocyclic Carbene by a Stable Phosphonium–Borane peri‐Functionalized Naphthalene

A 1‐phosphonium‐8‐borane‐decorated naphthalene molecule 2 has been found to react with N,N′‐dimethylimidazol‐2‐ylidene (IMe), a popular member of the N‐heterocyclic carbene (NHC) family, which converts it into two vinyl‐amine fragments one of which is trapped between the phosphonium and borane unit by the formation of a C?C and a B?N bond. The same reactivity was not observed for larger NHC molecules. Control experiments and mechanistic studies have established the involvement of an ylide–borane molecule and an imidazolium salt in addition to IMe carbene in this new transformation of an NHC.     

Leveraging Multi-Instance RPL Routing Protocol to Enhance the Video Traffic Delivery in IoMT

Wireless Personal Communications - Nowadays, the massive proliferation of real-world multimedia devices has paved the way to the emergence of a new paradigm called the Internet of Multimedia Things...     

Synthesis and Reactivity of Unsaturated Bisphosphonium Salts

Abstract

The synthesis of 1, 2 vinylene bisphosphonium salts 1 has now been enlarged to the vinylogous 1, 4-butadienylene bisphosphonium salts 2. The salts 2, a new class of unsaturated disalts, have also been prepared through a two-step isomerisation of acetylenic salts. New aspects of the reactivity of salts 1 and the comparative study of salts 2 (selective cleavage reactions of P-C bonds and reactions with nucleophiles having a mobile hydrogen) are described. This reactivity allows the preparation of new series of phosphonium salts substituted by heteroatomic groups.