Site-Selective Oxidation of Unactivated C sp 3H Bonds with Hypervalent Iodine(III) Reagents
作者:Shin A. Moteki、Asuka Usui、Tiexin Zhang、César R. Solorio Alvarado、Keiji Maruoka
DOI:10.1002/anie.201304359
日期:2013.8.12
By design: The site‐selective oxidation of unactivated secondary CHbonds was accomplished with hypervalent iodine(III) reagents and tert‐butyl hydroperoxide (see scheme). The preparation and derivatization of the hypervalent iodine(III) reagent are simple, thus allowing the rational design of these reagents to optimize the site selectivity of the oxidation.
New Organohypervalent Iodine Reagents for α-Methylphosphonylations and α-Diphenyl- and α-Dimethylphosphinylations
作者:Robert M Moriarty*、Cristian Condeiu、Anping Tao、Om Prakash
DOI:10.1016/s0040-4039(97)00388-2
日期:1997.4
[Hydroxy(((phenoxy(methyl)phosphoryl)oxy)iodo]benzene (1), [hydroxy(((diphenyl)phosphory)oxy)-iodo]benzene (2) and [hydroxy(((dimethyl)phosphoryl)oxy)iodo]benzene (3), obtained from the reaction of iodosobenzene with phenyl methylphosphonic acid, diphenyl- and dimethylphosphinic acid, respectively, effect the introduction of the corresponding phosphonate or phosphinate groups α- to ketone and ester
Iodophosphoryloxylation of Carbon−Carbon Multibonds and Its Application to Glycals
作者:Takahito Muraki、Masataka Yokoyama、Hideo Togo
DOI:10.1021/jo000296r
日期:2000.7.1
Iodophosphoryloxylation of carbon-carbon multibonds was attempted. Alkynes and cyclohexene were converted to the corresponding 1,2-iodophosphoryloxylated compounds in moderate to good yields with a trivalent iodine compound/iodine system, while glucal gave mainly the corresponding iodohydrin compound in this system. However, 2-deoxy-2-iodoglycosyl diphenylphosphinates were obtained from the corresponding glycals with a diphenylphosphinic acid/iodine/potassium carbonate system in good yields. Moreover, triethylborane smoothly reduced 2-deoxy-2-iodoglycosyl diphenylphosphinates to 2-deoxyglycosyl diphenylphosphinates in a 1,4-cyclohexadiene solvent.