Two new reagents. dimethylammonium chlorochromale adsrbed on alumina and silicagel are describe as convenient reagents for efficient oxidation of a variety of primary and secondaryalcohols. These two reagents are very...Two new reagents. dimethylammonium chlorochromale adsrbed on alumina and silicagel are describe as convenient reagents for efficient oxidation of a variety of primary and secondaryalcohols. These two reagents are very stable and call be safely used for the oxidation of alcoholscontaining double bond.展开更多
This paper reports a new method for oxidizing the α-methyl or α-methylene groups in carbonyl compounds into 1,2-dicarbonyl compounds by ammonium chlorochromate(ACC).
A new reagent. trimethylammonium chlorochromate adsorbed on alumina, suitable for the oxidation of hydroxy compounds to the corresponding carbonyl compounds is described.
An efficient and mild methodology for oxidation of organic compounds is described using Cetyltrimethylammonium Chlorochromate (CTMACC) under microwave irradiation. The reactions are performed cleanly and are controlle...An efficient and mild methodology for oxidation of organic compounds is described using Cetyltrimethylammonium Chlorochromate (CTMACC) under microwave irradiation. The reactions are performed cleanly and are controlled to stop at aldehyde stage, without over-oxidation and side products. Oxidation of organic compounds to their corresponding carbonyl compouds, are studied under microwave radiation. The easy procedure, simple workup, short reaction times, and excellent yields, are another advantages of this reagent.展开更多
An oxidative rearrangement of cyclic tertiary a-hydroxy allylsilanes has been carried out in refluxing ClCH_2CH_2Cl with pyridinium chlorochromate（PCC）.The reaction provides a convenient method to synthesize cyclic...An oxidative rearrangement of cyclic tertiary a-hydroxy allylsilanes has been carried out in refluxing ClCH_2CH_2Cl with pyridinium chlorochromate（PCC）.The reaction provides a convenient method to synthesize cyclicβ-silylenones in modest to excellent yields.展开更多
The advantages of the Ge–Pb-based perovskite solar cells(PSCs),such as low bandgap,have made this kind of PSC popular nowadays.Nevertheless,they have adverse properties that need to be fixed,such as short lifetime an...The advantages of the Ge–Pb-based perovskite solar cells(PSCs),such as low bandgap,have made this kind of PSC popular nowadays.Nevertheless,they have adverse properties that need to be fixed,such as short lifetime and fast crystallization process,which causes Ge defects.In this research,the passivation of Ge defects by using pyridinium chlorochromate methylamine iodine(PCCMAI)in the perovskite film(PF)structure is investigated.By using PCCMAI,the PSC's performance enhancement and surface morphology optimization were observed.展开更多
文摘Two new reagents. dimethylammonium chlorochromale adsrbed on alumina and silicagel are describe as convenient reagents for efficient oxidation of a variety of primary and secondaryalcohols. These two reagents are very stable and call be safely used for the oxidation of alcoholscontaining double bond.
基金The Project Supported by National Science Foundation of China.
文摘This paper reports a new method for oxidizing the α-methyl or α-methylene groups in carbonyl compounds into 1,2-dicarbonyl compounds by ammonium chlorochromate(ACC).
文摘A new reagent. trimethylammonium chlorochromate adsorbed on alumina, suitable for the oxidation of hydroxy compounds to the corresponding carbonyl compounds is described.
文摘An efficient and mild methodology for oxidation of organic compounds is described using Cetyltrimethylammonium Chlorochromate (CTMACC) under microwave irradiation. The reactions are performed cleanly and are controlled to stop at aldehyde stage, without over-oxidation and side products. Oxidation of organic compounds to their corresponding carbonyl compouds, are studied under microwave radiation. The easy procedure, simple workup, short reaction times, and excellent yields, are another advantages of this reagent.
基金supported by the National Natural Science Foundation of China(No20802044)RFDP(No 200806101091)
文摘An oxidative rearrangement of cyclic tertiary a-hydroxy allylsilanes has been carried out in refluxing ClCH_2CH_2Cl with pyridinium chlorochromate（PCC）.The reaction provides a convenient method to synthesize cyclicβ-silylenones in modest to excellent yields.
基金support(Research University Excel ence Initiative)through Silesian University of Technology grant No.32/014/SDU/10-22-78。
文摘The advantages of the Ge–Pb-based perovskite solar cells(PSCs),such as low bandgap,have made this kind of PSC popular nowadays.Nevertheless,they have adverse properties that need to be fixed,such as short lifetime and fast crystallization process,which causes Ge defects.In this research,the passivation of Ge defects by using pyridinium chlorochromate methylamine iodine(PCCMAI)in the perovskite film(PF)structure is investigated.By using PCCMAI,the PSC's performance enhancement and surface morphology optimization were observed.
