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Preparation of 6-Hydroxy-2,3-dihydro-4-quinolone
6-Hydroxy-2,3-dihydro-4-quinolone is an important drug intermediate. The preparation of 6-hydroxy-2,3-dihydro-4-quinolone from p-anisidine as raw material are introduced in the paper, including threeExpand
Study on rheological property of four food additives
Rheological property of four food additives is studied.It is found that the colloidal solutions of xanthan and guar gum are similar in rheological property.They both are non-Newtonian fluid whenExpand
Synthesis of m-Chloroaniline by Raney-Ni Catalytic Hydrogenation
m-Nitrochlorobenzene was dissolved in methanol in an autoclave, Raney-Ni catalyst and dechlorination-inhibitor were added, hydrogenation was carried out at 1.2MPa and 65 ℃ for 80-85 minutes, givingExpand
Preparation of 1,2-Bis-(o-aminophenoxy)ethane by Catalytic Hydrogenation
In the presence of Pd/C catalyst,1,2-bis-(o-aminophenoxy)ethane was prepared from 1,2-bis-(o-nitrophenoxy)ethane by means of catalytic hydrogenation.The primary factors affecting the reaction wereExpand
A PRB Remediation Test of Cr-polluted Groundwater
With Cr-polluted groundwater as the research subject, permeation reaction barriers (PRB) were designed with active carbon, Fe0, and active carbon plus Fe0 as reaction media respectively, with whichExpand
Study on the relationships between optical texture of coke and quality of Coal and coke
Analyze the defect in present standard on classification of coke optical texture, frequently-used research method on coke optical texture, reactivity of inertinite during coking, relationshipsExpand
An Improved Process for the Synthesis of 3,5-Dimethylaniline
3,5-Dimethylaniline was synthesized from 2,4-dimethylaniline.The reaction steps of acylation,nitration,hydrolysis/deacetylation,diazotization/deamination and reduction were improved.Acylation andExpand
Study on determination of triptolide in human plasma by HPLC-MS
OBJECTIVE To establish a method for the determination of triptolide in human plasma by HPLC/MS. METHODS Use Thermo-keystone Hypurity C_(18) column (150×(2.1) mm, 5μm);the mobile phase wasExpand
Preparation of High Vinyl Polybutadiene with Tetrahydrofurfuryl Ethyl Ether/Sodium Salts of Tetrahydrofurfuryl Alcohol Composite Modifiers System
The tetrahydrofurfuryl ethyl ether(ETE)/sodium salts of tetrahydrofurfuryl alcohol(THFAONa)composite modifier system were used to prepare polybutadiene with n-BuLi as initiator,cyclohexane asExpand