Control of Chemoselectivity of SET-Promoted Photoaddition Reactions of Fullerene C<sub>60</sub> with α-Trimethylsilyl Group-Containing <i>N</i>-Alkylglycinates Yielding Aminomethyl-1,2-dihydrofullerenes or Fulleropyrrolidines
作者:Suk Hyun Lim、Mina Ahn、Kyung-Ryang Wee、Jun Ho Shim、Jungkweon Choi、Doo-Sik Ahn、Dae Won Cho
DOI:10.1021/acs.joc.0c01324
日期:2020.10.16
Knowledge about factors that govern chemoselectivity is pivotal to the design of reactions that are utilized to produce complex organic substances. In the current study, single-electron transfer (SET)-promoted photoaddition reactions of fullerene C60 with both trimethylsilyl and various alkyl group-containing glycinates and ethyl N-alkyl-N-((trimethylsilyl)methyl)glycinates were explored to evaluate
The Preparation of Aminomethylsilicon Compounds and their Derivatives
作者:John E. Noll、John L. Speier、B. F. Daubert
DOI:10.1021/ja01152a092
日期:1951.8
solubility, meltingpoint and mixed meltingpoint) as resulted by oxidation of the product obtained via p-toluenesulfenyl chloride and l-chloro-l-nitroethane. The low yield of sulfone is associated with the presence of considerable p-tolyl disulfide in the oily product subjected to oxidation. The disulfide was separated and its identity confirmed by meltingpoint and mixed meltingpoint with authentic
Photochemical Approach for the Preparation of <i>N</i>-Alkyl/Aryl Substituted Fulleropyrrolidines: Photoaddition Reactions of Silyl Group Containing α-Aminonitriles with Fullerene C<sub>60</sub>
作者:Suk Hyun Lim、Jiin Oh、Keepyung Nahm、Sunguk Noh、Jun Ho Shim、Cheolhee Kim、Eunae Kim、Dae Won Cho
DOI:10.1021/acs.joc.8b02804
日期:2019.2.1
substituted amines led to exclusive formation of non-silyl containing cycloadducts. In contrast to those of N-alkyl substituted α-aminonitriles, photoreactions of N-(trimethylsilyl)methyl and N-aryl substituted α-aminonitriles gave rise to the formation of both trans- and cis-isomeric fulleropyrrolidines with an inefficient and non-stereoselective manner. The feasible mechanistic pathways leading to generation
Single electron transfer promoted photoaddition reactions of α-trimethylsilyl substituted secondary N-alkylamines with fullerene C<sub>60</sub>
作者:Ho Cheol Jeong、Suk Hyun Lim、Dae Won Cho、Sung Hong Kim、Patrick S. Mariano
DOI:10.1039/c6ob02069k
日期:——
Single electron transfer (SET) promoted photoadditionreactions of secondary N-α-trimethylsilyl-N-alkylamines to C60 were explored to gain a deeper understanding of the mechanistic pathways followed and to expand the library of novel types of organofullerenes that can be generated using this approach. The results show that photoreactions of 10% EtOH–toluene solutions containing C60 and N-α-trimeth
Design, Synthesis, and Photodegradation of Silicon-Containing Polyureas
作者:Jih Ru Hwu、Ke Yung King
DOI:10.1002/chem.200401321
日期:2005.6.20
Novel N-phenyl aromatic polyureas containing bis[(N,N'-diphenylureylene)methyl]silane units in the skeleton were designed as a new type of photodegradable polymer. These materials were successfully prepared in 88-93 % yields by copolymerization of bis(anilinomethyl)dimethylsilane and dianilino-p-xylene with 4,4'-methylenebis(phenylisocyanate). Their photodegradability was found to be 10.1 times higher