Mercury oxide-Tetrafluoroboric acid

OXYAMINATION Mercury(ll) oxide-Tetrafluoroboric acid. Trioxn(/-butyl-imido)osmium (VIII). 

S)-(—)-Menthyl p-toluenesulfmate, 312-315 Mercury(II) acetate, 315-316 Mercury(II) nitrate, 317-318 Mercury(II) oxide-boron trifluoride, 318 Mercury(TI) oxide-tetrafluoroboric acid, 318-319... 

Mercury(II) oxide-Tetrafluoroboric acid, HgO-HBp4, white, hygroscopic solid. 

A modified method for the synthesis of alkynyl(phenyl)iodonium tetrafluoroborates 363 consists of the direct reaction of terminal alkynes with iodosylbenzene, a 42% aqueous solution of tetrafluoroboric acid and a catalytic amount of mercury oxide (Scheme 2.103) [500]. 

The aminomercuration-demercuration reaction has provided two examples for primary to secondary amine conversion.In one, Markovnikov addition of the aminomercurial (10) to an alkene, followed by ligand exchange with sodium hydroxide and subsequent reduction with sodium borohydride, yields the secondary amine (11) in a one-pot reaction (Scheme 10). In the other,vicinal diamines (12) are the products from the one-pot reaction of alkenes with tetrafluoroboric acid and mercury(ll) oxide in the presence of excess primary amine (Scheme 11). Both reactions work equally well with secondary amines. 

Silver(I) acetate, 396 Silver hexafluoroantimonate, 467 Silver imidazolate, 467 Silver nitrite-Mercury(II) chloride, 467-468 Silver(l) oxide, 468-469 Silver(II) oxide, 469 Silver perchlorate, 469-470 Silver tetrafluoroborate, 471 Silver(I) trifluoracetate, 471 Simmons-Smith reagent, 210-211, 472, 598 Sinularene, 246 Slaframine, 114, 115 Sodium amalgam, 473-475 Sodium-Ammonia, 472 Sodium benzeneselenoate, 475 Sodium bicarbonate, 476 Sodium bis(methoxyethoxy)aluminum hydride, 93, 476-477 Sodium borate, 322 Sodium borohydride, 477-479, 499 Sodium borohydride-Cobalt(IF) chloride, 479 Sodium borohydride-Methanesulfonic acid,... 

---