Happy Halloween! Meet Vladoslav the Voracious - he was our lab octopus from 3 years ago. And we even made it so the door would still open! There’s also the organic chem book from the bio department decoration.
Conjugated tetraenes are important key substructures in electronic materials, natural products and pharmaceutical molecules. However, they are difficult to synthesize. They are conventionally prepared by repetitions of the stoichiometric reactions using phosphorus reagents and subsequent reduction and partial oxidation. For making one C=C double bond, one needs to conduct 3 step reactions by this procedure. Each process produces wastes of phosphorus oxides and metal compounds such as lithium, aluminum and manganese. Removal of organic solvents and purification processes are also required. An alternative catalytic approach is the cross-coupling reaction catalyzed by a Pd complex but this method needs to prepare an activated alkenyl or dienyl metal species in advance.
TUAT researchers have achieved the new synthetic route of conjugated tetraenes from inexpensive and easily available 1,3-butadiene and substituted acetylenes by a one-pot approach under mild conditions. This is the most straightforward synthetic method ever reported. This new method has been published in the ACS journal Organometallics.
“The Ru catalyst precisely distinguishes butadiene and substituted acetylene molecules and new carbon-carbon bonds are formed among a butadiene with two acetylenes just by migration of the terminal hydrogen atoms in butadiene. Interestingly, this catalysis proceeds regio- and stereoselectively and no wastes are produced from the reaction,” said Masafumi Hirano, a TUAT professor of chemistry and principal of the study.
My organic chemistry midterm is horrible! Hope it turns to motivation for the next midterm. There are less things to do this week, which is good. Currently catching up with the chemistry notes!
Busy, busy, busy! Apllied for a job on campus, have so much homework, chemistry lab is hard (organic), physics lab is so overwhelming. I have no idea what should I do or what am I doing. Oh. My. God.
I am back! Hopefully this fall quarter will be a good quarter. I am trying to focus more on independent studying and hopefully it will bring good results. First week is never fun, my hands are constantly shaking. I hope I will get used to it and enjoy this quarter.
I have two tests this week and I’m drowning in homework and study guides. I know school is a marathon but it feels like I’ve already been sprinting for a month!
Finishing my OChem Acids & Bases notes ☺️ it takes a while but it’s way easier when its time to review because I’ve organized all my rushed scribbles into organized and visually coherent notes.
(P.s. if anyone wants PDFs of any notes I post just dm me!)
Case in point: using these to review for my quiz today!
Aprovechando los primeros días libres realmente que tengo desde que comenzó el año, empezaré a organizar algunas cosas en las que me ocuparé estos meses.
Por ahora les comparto un resumen de Química Orgánica sobre reacciones E1 y E2, parte de mis notas rápidas de estudio para el examen de posgrado.
¿Qué planes tienen para estás vacaciones?
Taking advantage of the first weekend that I have since the beginning of the year, I will begin to organize some of the things that I will take care of in these months.
For now I share with you a summary of Organic Chemistry on E1 and E2 reactions, part of my quick study notes for the masters exam.
Here are some pictures that I’ve taken from my past laboratory experiments during the whole foundation year + my first year of BSc (Hons) Biotechnology in university! Had some pictures that are from failed / unsuccessful experiments (ㆀ˘･з･˘)
