Which is the most appropriate methods to follow for synthesis new cyclic compounds from acetophenone derivatives?

More Shaima Ibraheem Chyad Al-khazraji's questions See All

Can we distinguish the type of free fluid inside the pelvic and abdominal cavities whether blood or serous fluid using the ultrasound?

during ultrasound examination of acute abdomen, sometimes we see free fluid , can we know the type of fluid ,whether blood or not , using ultrasound only? if yes , what are the sonographic...

01 March 2021 7,476 4 View

The reason that the culture of white fungi Contamination with green mold(Trichoderma), the culture autoclave at121 for 15 min. What is it?

Is the period to autoclave not enough? The inoculation in a hood and flame and UV and alcohol.

27 February 2021 9,356 3 View

Is there a fast method matching citations to bibliography (manually typed references)?

I need to be able to match in-text citations to a reference list and back again in very large documents (100+ pages) WITHOUT the use of referencing software like Endnote. my method is to type the...

27 February 2021 9,848 1 View

Can I put a figure that was drawn by Bio-Render in publication paper?

I want to publish paper in journal but I have figures which have drawn with bio-renders, can I put them in the paper or which other software I can use to draw them?

27 February 2021 8,179 1 View

What is the most suitable medium of ascomycetes fungi ??

26 February 2021 4,413 1 View

Is it possible to set a breakpoint at a specific DYNAMIC instruction using the GNU Debugger (GDB)?

Using GDB, it is straightforward to debug and monitor a target program by setting a break-point at a specific instruction, since the instruction addresses are known. However, we have two...

24 February 2021 1,598 2 View

Is it possible that Cancer cells could survive in heparinized blood for 48 hours?

Hi everyone, I am just wondering if we incubated 200 microliter of whole blood with 50 microliter of cancer cells(1bout 5000cells) do you think that cancer would survive for 48 hours?

23 February 2021 3,840 3 View

What is the most prevalent drug related problem in the developed countries?

Detecting the drug related problems is an important step in the pharmaceutical care plan

21 February 2021 5,421 3 View

What are the dimensions by which the independent variable (big data) can be measured, Knowing We using the questionnaire instrument?

We have a research project consisting of three variables where big data is the independent variable. Some previous studies showed that Volume, Variety, Velocity and Veracity Are the dimensions...

21 February 2021 8,133 2 View

Is nanotechnology part of materials science? Is it possible to obtain Pico technology and move from hypothesis to application?

Pico-scale This is three orders of magnitude smaller than a nanometer (and thus most nanotechnology) and two orders of magnitude smaller than most chemistry transformations and measurements. Pico...

18 February 2021 4,540 5 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

What is the best etching method for Mg-Ca alloy?

I have used Picral etchant (4.2 g Picric acid, 10 mL Acetic acid, 70 mL Ethanol, 10 mL distilled water) but it didn't work. Is there any alternative?

21 February 2021 2,558 5 View

What is the best visualisation solvent for xylooligosaccharides using TLC?

I am interested in using TLC to detect non-linear xylooligosaccharides. What would be the best visualisation solvent? Would aniline phthalate solution be suitable? I have also seen people...

02 February 2021 7,748 3 View

Are any database collected cell penetrating anticancer peptides ?

Dear researchers, Anticancer peptides(ACPs) with cell-penetrating properties can enter to cytoplasmic space of cancer cells and induce cell death. but, I could not find the database that...

29 January 2021 707 3 View

Can anyone help me to separate my phenolic compound in TLC with any new solvent system ?

My Compound is Leaf powdered Methanolic extract which is showing good phenolic compounds upon dipping in FeCl3. -My problem is phenolic compounds are not eluting with any common solvent system.

22 January 2021 4,693 7 View

What could be the reason behind decrease in transmission (around 1200 cm^-1 ) in the FTIR spectrum of gas phase organic compound ?

Hi, I have been analysing gas phase organic solvents with the help of FTIR. The spectrum looks a bit weird around 1200 cm^-1 (see attached image). I noticed a similar behaviour when the gas cell...

12 January 2021 3,286 8 View

Why is outcome of a natural product discussed in terms of phytochemistry of its constituents instead of as a whole substance?

it has been observed that publication of an outcome of a natural herbomineral product in a clinical study contains mechanism of action in terms of chemistry of individual constituents of the...

04 January 2021 7,372 3 View

Hello, I need help to separate the mucilage found in an aqueous extract ?

During the process of aqueous extraction of phenolic compounds, I got a mucilage that must be separated from the extract that I would like to study. Thank you for your help.

03 January 2021 1,765 3 View

Response Surface Methodology?

I'm using 3 different light intensities (constant values 15,30,45 W) for the wastewater treatment of an organic compound and optimizing the parameters (pH, catalyst dose and light intensity)...

31 December 2020 2,377 4 View

For experts in Gaussian 09 for windows?

Dear Friends: 64 bit Gaussian 09 software for windows is more expensive than 32-bit Gaussian 09. In our work, we deal with coordination compounds with about 50 atoms. So, can we use 32-bit...

27 December 2020 2,877 2 View

Johan De meester

Acetophenone can be oxidized to phenylglyoxal in high yield using aqueous selenium dioxide at 90 C after four hours.

Phenyl glyoxal can be reacted with a number of 4,5 diamino pyrimidines to give different pterins or pteridines.

Phenyl glyoxal can be reacted with acetonoxime to get phenylglyoxal oxime. This product can be reacted with alpha-amino nitriles giving rise to pyrazine heterocycles – reaction in methanol will do the trick.

Shaima Ibraheem Chyad Al-khazraji

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