Photocatalysis has recently given impetus to the use of ligated boryl radicals (LBRs) in synthesis, thanks mild conditions required for their generation based on visible light. LBRs are B-centered wherein boron atom is coordinated with a suitable Lewis base (e.g., amine, phosphine, or N-heterocyclic carbene [NHC]) and can be conveniently accessed from corresponding boranes through cleavage B−H ...

Poly(ethylene glycol) (PEG)-based soft elastomers, bearing tertiary amine and hydroxyl groups, were synthesized in bulk from the epoxy–amine reaction between poly(ethylene diglycidyl ether (PEGDE) a poly(etherdiamine), Jeffamine ED600. High gel fractions (≥0.95) low glass transition temperatures (Tg ≈ −50 °C) attained after complete curing of systems bulk. The amphiphilicity network allowed swe...

This review summarizes major findings over the last decade related to nitrosamines in drinking water, with a particular focus on N-nitrosodimethylamine (NDMA), because it is among the most widely detected nitrosamines in drinking waters. The reaction of inorganic dichloramine with amine precursors is likely the dominant mechanism responsible for NDMA formation in drinking waters. Even when occu...

The mutagenicity of six heterocylic nitrogen mustards (ICR compounds) has been determined in a cultured mammalian cell system by use of resistance to the purine analog 6-thioguanine to select for mutation induction at the hypoxanthine-guanine phosphoribosyltransferase locus in Chinese hamster ovary cells. The six compounds tested are ICR 191, 170, 292, 372, 191-OH, and 170-OH. The first four co...

The secondary amine piperidine and the tertiary amine quinuclidine (l-azabicyclo[2.2.2]octane) were reacted in THF with one equivalent of triphenylphosphinegold(I) tetrafluoro­ borate, [Ph3PAu]+ BF4“, to give the monoaurated ammonium salts of formula [R„NHp_„)AuPPh3]+ BF4~ (n = 2, 3). The compounds were obtained as crystalline solids in good yields, and were characterized by IR and NM R spectro...