Asymmetric catalysis has proven remarkably successful in achieving enantioselective control during the construction of new stereogenic centers.However,the challenge of achieving chiral enrichment at pre-existing stere...
supported by the Important Specific Projects of National Science and Technology of China(2009ZX01033-001-010)
This paper presents a new implementation of a high-definition image-processing engine,which mainly targets the 3-dimensional(3D)visualization and stereo video stream display of binocular display equipment.The engine i...
Project supported by the National Natural Science Foundation of China.
To derive accurate three-dimensional (3-D) information of a scene is an important pur-pose in computer vision. Two-viempoints stereo vision (we will call it stereo vision in thefollowing) is a technique for reconstruc...
Mass spectrometry in the study of stereochemical problems has been developed in the past decade. However, under normal conditions, there would be no difference between the mass spectra of enantiomers (Fig. 1) and no a...
A new isomer of cycloheximide-neoisocycloheximide (A) has been isolated from 'Nongkang101', a crude extract from the culture of streptomyces-A-94. (A) can react with urea to
Through reductive addition of pheny llithium to μ—S2Fe2 (CO)6 and nucleophilic substitution between alkyl halides and (μ—PhS) (μ-LiS)Fe2·(CO)6, we have successfully synthesized six (μ—