相关期刊:《Chemical Research in Chinese Universities》《Journal of Donghua University(English Edition)》《China Chemical Reporter》《International Journal of Organic Chemistry》更多>>
The operation of auxiliary equipment of steam turbine in power plant is optimized and improved to improve the working efficiency of steam turbine unit and effectively utilize the resources of power plant. In the actua...
G.C.thanks NSFC-91753124,NSFC-21672105,NSFC-21421062,and NSFC-21725204 for financial support of this work.
Main observation and conclusion A set of Pd-catalyzed ortho-directed C-H glycosylation reactions with glycosyl chloride donors using various N-linked bidentate auxil-iaries has been developed for synthesis of C-arygly...
Supported by the PetroChina Scientifc Research and Technological Development Project(kt2017-21-14-1).
The conventional foaming agents have the problems of poor adaptability and high cost during the application in different types of gas fields,especially in high temperature,high salinity,high acidic gas and high conden...
There is massive mistakes in the usage of‘won't'in both communication and something written, which cause a lot mis-understandings and has become a big obstacle in expressing oneself properly and effectively. So this ...
Supported by the National Natural Science Foundation of China(No.21342002).
The Mannich reaction of various 5-substituted and N-acyl substituted chiral hydantoins with a series of aldimines smoothly occurred with full stereochemical control. These Mannich adducts have been cleaved by alcoholy...
This study aims to show the possibility of using virtual environments/tools that are just considered social networking settings/tools as auxiliaries to develop the teacher formation process, and to verify how the know...
Saoura region is situated in the south west of dactylifera), where the authors note several oases such as: Algeria characterized by a height density of date palm trees (Phoenix Taghit, lgli, Beni Abbes... Despite t...
The modal is a type of auxiliary verb that is used to indicate modality.There are thirteen modal auxiliaries including some past tense forms.In this paper,the modals and semi-modals will be studied through analyzing f...
A cleavage reaction of 1-acylhydantoin by an amine in tetrahydrofuran at elevated temperature provided the corre-sponding amide and hydantoin in high yield. It was found that the addition of diethylaluminum chloride a...
Highlight the intensification of production process technologies Chen Yu, Director of Guangdong Huanan Fine Chemical Industry Research Institute China’s production of plastic auxiliaries todays till has the shortcomi...