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A rapid esterification by means of mixed anhydride and its application to large-ring lactonization.
A rapid and mild esterification method using carboxylic 2,4,6-trichlorobenzoic anhydrides in the presence of 4-dimethylaminopyridine was developed. The method was also successfully applied to the… Expand
Troponin Subunits and Their Interactions
A novel SmI2-induced masked-formylation of carbonyl compounds
Abstract The reductive cross-coupling of 1,3-dioxolane with carbonyl compounds to yield α-hydroxy aldehyde derivatives was attained by the reduction of iodobenzene with a solution of SmI2 in… Expand
A Mild and Convenient Method for the Reduction of Organic Halides by Using a SmI2-THF Solution in the Presence of Hexamethylphosphoric Triamide (HMPA)
A remarkable effect of HMPA was observed in the reduction of organic halides with a SmI2-THF solution. Various types of organic halides were reduced rapidly to the corresponding alkanes in almost… Expand
SmI2-induced reductive cross-coupling of carbonyl compounds with (α,β-unsaturated esters
Reductive cross-coupling of carbonyl compounds with(α,β-unsaturated esters by SmI2 to ?-lactones was highly accelerated by the addition of hexamethylphosphoric triamide (HMPA).
Partial synthesis of aromatic carotenoids, tedanin, agelaxanthin a, tethyatene, and renieratene
Abstract Aromatic carotenoids, tedanin, agelaxanthin A, and tethyatene were synthesized from 0- acetyl-6-citraurin derived from natural zeaxanthin, and tethyatene was further transformed into… Expand
Preparation of Hindered Esters from Acid Chlorides and Alcohols in the Presence of Silver Cyanide
Sterically hindered esters were prepared from the corresponding acyl chlorides and alcohols in the presence of silver cyanide. The method is superior to the conventional acyl… Expand
Use of 1,8-diazabicyclo(5.4.0)undec-7-ene in preparation of trimethylsilyl enol ethers and trimethylsilylacetylenes.
Trimethylsilyl enol ethers were prepared by using a combination of chlorotrimethylsilane and 1,8-diazabicyclo[5.4.0]undec-7-ene in good yields. Trimethylsilylation of acetylenes was also achieved… Expand
Asymmetric Epoxidation of Homoallylic Alcohols Using Zirconium Tetrapropoxide, Dicyclohexyltartramide, and t-Butyl Hydroperoxide System
In the asymmetric epoxidation of homoallylic alcohols, a combination of zirconium tetrapropoxide, dicyclohexyltartramide, and t-butyl hydroperoxide was found to give good enantiomeric selectivities… Expand