64654-10-0Relevant academic research and scientific papers
Total Synthesis of (+)-Pancratistatin by the Rh(III)-Catalyzed Addition of a Densely Functionalized Benzamide to a Sugar-Derived Nitroalkene
Potter, Tyler J.,Ellman, Jonathan A.
, p. 2985 - 2988 (2017)
Herein, we report the concise total synthesis of (+)-pancratistatin, accessed in a 10-step linear sequence from commercially available inputs. The convergent synthesis features a highly diastereoselective Rh(III)-catalyzed C-H bond addition to a d-glucose
Synthesis of α-benzylated amides via electrocatalytic Favorskii rearrangement of 1, 3-diarylacetones
Liu, Wei,Huang, Wei,Lan, Tianlei,Qin, Haijuan,Yang, Cheng
, p. 2298 - 2305 (2018/04/05)
Electrolysis of 1,3-diarylacetones with aliphatic amines in Bu4NI/CH3CN to racemic Favorskii amides via benzyl group rearrangement has been developed. The electroconversion is easily conducted in a simple undivided cell under constan
Catalytic Formation of α-Aryl Ketones by C-H Functionalization with Cyclic Alkenyl Carbonates and One-Pot Synthesis of Isocoumarins
Hara, Yusuke,Onodera, Shunsuke,Kochi, Takuya,Kakiuchi, Fumitoshi
supporting information, p. 4850 - 4853 (2015/10/12)
We report here a method for direct catalytic introduction of simple α-acylalkyl groups via rhodium-catalyzed C-H functionalization with cyclic alkenyl carbonates, synthetic equivalents to enolates bearing leaving groups. The reaction proceeded smoothly without using bases to give α-aryl ketones in high yields. Various nitrogen-containing aromatic rings and amide groups serve as directing groups. 3-Substituted isocoumarins can also be prepared by one-pot C-H functionalization/cyclization.
Synthesis and Application of Imidazole Derivatives. Synthesis and Acyl Activation of 2-Acyl-1-methyl-1H-imidazoles
Ohta, Shunsaku,Hayakawa, Satoshi,Moriwaki, Hiroki,Harada, Suzumi,Okamoto, Masao
, p. 4916 - 4926 (2007/10/02)
2-Acyl-1-methyl-1H-imidazoles (3) were prepared in good yields by treating 1-acylpyrrolidines (5) with 2-lithio-1-methyl-1H-imidazole (2) at -78 deg C.The acyl group of 3 was very stable under various severe conditions, but 2-benzoylimidazole (3a) was gradually hydrolyzed by heating with 1.3 N NaOH to produce benzoic acid and 1-methyl-1H-imidazole.Acyl activation of 3 was performed by direct quaternization of 3 with iodomethane or dimethyl sulfate or more successfully by quaternization of the corresponding O-trimethylsilylated gem-cyanohydrin (11) with dimethyl sulfate.Keywords- acylimidazole; 2-acylimidazole; imidazolium salt; acyl group activation; acylation; C-C bond fission; protecting group; latent functionality
