2-AZETIDINONE preparation from Schiff base?

are their any chemical compound that used to synthesis 2-AZETIDINONE from Schiff base other than chloroacetyl chloride?

10 November 2017 6,314 4 View

Schiff base preparation?

Dear Dr's I prepare Schiff base; firstly lemons color appear, after 4 hrs "i forget it more than 1 hour" the color change to brown; are their a relationship between time and color?

09 October 2017 2,708 6 View

Molar ratio?

anyone can help me to use conductivity method to determine molar ratio of Schiff base-metal complex? i need reference please?

04 May 2017 755 0 View

How i can separate phosphogypsum chemically?

How i can separate phosphorous from gypsum?

02 March 2017 7,470 1 View

Sodium borohydride?

Dear Dr's: I would like to ask about the effect of NaBH4 on a schiff base have an ester group; does the ester affected by NaBH4?

01 February 2017 5,358 4 View

White Schiff base ?

Are their a Schiff base with white color?

11 December 2016 7,243 1 View

Indicator film used to detect some metals by make complexation with it?

09 October 2016 7,036 3 View

No title

uv

05 June 2016 5,121 0 View

Is carbonic acid an organic acid or an inorganic acid?

if i say H2CO3 ( called carbonic acid) does'n exist but it is a solution of CO2 dissolve in water and both of them are inorganic compounds so it is an inorganic compound???

10 November 2015 9,376 3 View

Dear Dr's i hope to aske about fluorescence?

01 January 1970 2,732 3 View

Looking for Materials with high thermal expansion coefficient and high temperature resistance?

03 March 2021 8,272 1 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

Waters 2707 HPLC autosampler problem?

I am using a 2707 waters HPLC device. When I try to inject a sample, it says missing plate or rack. I changed the needle and calibrated its position but I still get the same problem. I even get...

02 March 2021 1,408 1 View

Why almost every element would be metallized in sufficiently high pressure and low temperature?

(This statement is from wikipedia, BTW). What is so special about metallic bond that is limiting high-P low-T state of a matter (as long as individual atoms exist, not white dwarf of neutron star...

02 March 2021 3,309 2 View

How optimize the Size Exclusion Chromatography?

Hello! I'll do a size exclusion chromatography, but I only have an open column, and I'll perform the peptide extraction from yeast, using buffer lysis (sodium phosphate 50 mM/NaCl 30 mM/DNAse and...

01 March 2021 2,215 2 View

Does anyone know HRM channel in a 2 plex QIAGEN Rotor- Gene Q qPCR can be used as a separate channel?

I am going to have 3 different probes in my qPCR work that I am going to do. But I realized that the machine we have in the lab is a Rotor-Gene Q 2plex HRM Platform, saying it has green, yellow,...

01 March 2021 8,544 1 View

I have designed reflectarray element and feeding it though Horn Antenna on HFSS. After full wave simulation, I am not getting desired results?

I have designed reflectarray element to generate OAM beams at 5.8GHz and feeding it though Horn Antenna on HFSS. After full wave simulation, i am not getting desired results i.e Radiation pattern...

01 March 2021 9,701 5 View

Joint behaviour in Abaqus is not captured well?

I am working on roof joint and trying to simulate the behaviour in Abaqus. I am successful in running the model but the final graph does not follow the experimental curve in the negative direction...

01 March 2021 6,661 3 View

Precipitate after adding laemmli buffer to protein solution containing Potassium Acetate?

Hi, I am running a size exclusion chromatography experiment with a buffer containing Potassium Acetate as a salt. I analyse these fractions through SDS-PAGE. After boiling my SEC fractions in...

01 March 2021 2,622 3 View

Any research papers for extraction of nutrient deprivation on macroalgae? Analysed by HPLC-UV and GC/MS. Possibly from macroalgae genus Rhizoclonium?

I am doing my thesis on the nutrient deprivation on the macroalgae Rhizoclonium sp. I will be analysing the levels over a period of roughly 5 days by HPLC-UV and GC/MS. I will be using seawater as...

28 February 2021 6,477 1 View