After careful consideration and full discussion by the whole family, Lanjie signed a contract with Mizuki Academy.

For a high school student who believes in physics, there is no better option in the country than Mizuki Monoin.

Lan Jie achieved his small goal, Lan Jie, his father and sister put together three of the strongest physical cards in China, all in all, it is gratifying.

Lan Jie returned to the sheep and prepared for the four university competitions.

This morning, Lan Jie had a class in Shujing No. 1 classroom.

The number competition is the only discipline competition without experiments, and it is all theoretical questions. This is the class of head coach Hu Deguang, although Mr. Hu is an unknown person in the mind of Mr. Mizuki Duan, but Mr. Hu's level is very high, and he can't be the head coach of the sheep middle school competition team if his level is not high.

"Is there a way to color the edges of any connected graph in red or blue so that the absolute value of the difference between the number of red and blue edges connecting the other points in the graph will not exceed 1?"

"Students, this question seems to be a dyeing problem, but it is actually a graph theory problem. This is an Euler graph, starting from the even vertex X in any of the original graph, along the edges of the Euler graph, the first edge is colored red, and the second edge is colored blue, and so on, so that the number of red edges and the number of blue edges are equal to the number of blue edges of any vertex except X point......"

Listening to Mr. Hu's math class, Lan Jie felt cordial.

Red and blue, this is the corporate culture in sheep.

It is true that Mizuki High School is the strongest, but the sky is not suitable.

Ranger loves to listen to the math teacher in the sheep talk about red and blue. Black and white are unfamiliar, and there is no sense of substitution at all.

Spatial thinking plus one.

Yes!

Plus one!

Spatial Thinking 49 up!

With one more bit of spatial thinking, you can reach a new realm that is a little bit unusual.

Yang Kewei was also selected for this year's sheep number competition team, and during lunch, Yang Kewei asked Lan Jie: "What kind of experience did you have when you signed the Shuimu Academy?"

Lan Jie said honestly: "I have always wanted to go to the Mizuki Academy, and I am still quite excited to get my wish this time." ”

"Actually, I pay more attention to your long jump results, 801 is really too top. Applejack, since you've signed up with Mizuki Academy, why don't you go a little further in the long jump?"

"How can I have so much energy and time when I am actively preparing for subject competitions?"

"A high school student who has already received an offer from the Mizuki Academy, he still does not relax the subject competition, maybe because of faith, or maybe he has some kind of complex. There is one thing to say, the possibility of a complex is greater, and many students who are sent in advance will also take the college entrance examination, and even become the top student in the college entrance examination, which is a complex, which is reasonable. ”

"Kewei, don't analyze it, I participated in the subject competition because I didn't want to be idle. ”

"There are many ways to keep yourself busy, like the long jump. So Ajay, the Mizuki Academy is not your ultimate goal, you aspire to win a gold medal in the international competition of disciplines. ”

"Okay, okay, I want to win the gold medal in the international competition. Don't think I don't know, you don't learn French out of interest, and it's not like traveling around the world, the world is so dangerous. But your ultimate goal is the extremely niche but extremely awesome teacher training college in Paris. ”

"It's a niche but awesome scientific research institution, okay. ”

After lunch, Lan Jie came to the laboratory building to participate in the chemical competition experiment.

Lanjie's harvest in the capital, all departments and units in the sheep have received the news. Qian Baoshan, the head coach of the chemical competition team, said: "To tell the truth, many students participate in chemistry competitions and competitions in other disciplines, mainly to obtain the qualification for escort. Lan Jie, you have been sent to the Mizuki Academy, which means that your future study direction is physics. Am I right?"

Lan Jie frowned: "So I can't continue to participate in the chemical competition training?"

Qian Baoshan shook his head and said: "No, of course you can continue to train and compete, you should be in a less stressful state of mind now, although there is no pressure and no motivation, but too much pressure is easy to crush students." There's a lot of pressure, but it's not too much, which is a good thing, and I think it's the best. For you at this stage, that's the icing on the cake, and seriously, I'd rather train students who are icing on the cake, if you train students who fight to the death...... Hey, I'm the one who is overstressed. ”

"What does Teacher Qian mean that students who fight to the death are prone to perversion?"

"There have been similar incidents before, where some students went to extremes. ”

"This ...... Ay. Lan Jie can fully understand the extreme psychology and extreme behavior of some students, he was full of expectations to participate in the competition when he was a sophomore in high school, it can be said that he fought to the death, but he lost the game, and he wanted to die.

All-round development is the right way.

Under the guidance of an experimental coach, Langer manipulated the reaction of cyclopentadiene with magnesium in tetrahydrofuran, and this Diels-Alder reaction involving benzyne was often used in the original Vertich/Grignard reaction. Oxidative cleavage/reductive amination reaction was used to catalyze the Van Rheenan reaction of benzobornene with OsO4, followed by oxidative cracking (NaIO4) and reductive amination with NaBH(OAc)3 and benzylamine reductive amination, and benzoazide was obtained by reducing hydrogenolysis.

Among the students who did the experiment, Lan Jie was the first to get benzoaziz, and he asked the experimental coach: "Coach, does the compound with the word "he" have a certain central nervous system modulation effect?"

The experimental coach asked rhetorically: "That's not the point, the point is that Lan Jie, have you mastered the principles and practical operations of these name reactions?"

"Got it, I used these name reactions to combine the target products. ”

"That's OK, Lan Jie, you write down the experiment record paper, clean up the test table, and then you can go. When you get back, think carefully about whether there is a synthetic path with a higher yield. ”

Lan Jie asked, "Coach, you really don't want to explain the use of benzozozazepine?"

The experimental coach explained: "Organic synthesis and personal name reaction are the necessary contents of chemical competition theory, and they are also common operations in chemical competition experiments. ”

"Well, thank you, Coach!"

The organic chemistry experiment took a long time, and it was late at night when Lan Jie returned home, so he took a shower and carefully followed the instructions of the chemical competition experiment coach to seriously think about other synthesis strategies.

In the business of organic synthesis, it is difficult to come to a conclusion by thinking out of thin air. Lanjie consulted the "Organic Synthesis Strategy", "Pharmacopoeia", and "Drug Toxicology", and learned about the new name reaction, as well as the second synthesis strategy and specific steps of benzoazizoxane.