The Study Of Tetrazine Reaction When Exposed To TCO

By Sandra Murphy


TCO or Trans cyclooctene has been innovated and studied along with another component which is tetrazine. The reaction between the conjugations of this two became the TCO Click Chemistry which is typically preceding without the use of copper. In addition, it has no means of connection with the rest of catalyst type. This mix has had a rapid and fully biorthogonal which excels on a low concentration unlike other reactions to be ever applied on the history of such matters. Due to that, it became a method for biorthogonal labeling as well as crosslinking choice.

However, for its application biologically speaking, there has to be a classical copper promoted one, three of dipolar cycloaddition which were developed by Meldal and Sharpless. However, it is not an ideal choice. This is because of the cytotoxity which were readily spotted and found on coppers. Without it, it promotes an alkyne azide cycloaddition instead.

Though, there is one application where a classical copper were added and this was developed by Meldal and Sharpless. This happens to have a dipolar cycloaddition by thee and it was not an ideal thing to do. The reason behind that were the cytotoxity being spotted on most copper materials and elements.

Without the copper, the promoted result would normally be an alkyne azide cycloaddition instead. This mere experiment was made and developed by Bertozzi on the other hand. But, not because it was proven more ideal than previous study, there no longer are drawbacks because it actually has. One of which would be on the utilization of cyclooctynes which were only limited based on the kinetics.

There are other limitation which were tallied as well. Like for example, the involvement of the extensive patent coverage of which. When the ligation of tetrazines take place, it causes the full and a rapid biorthogonal click chemistry happen. This reaction was then proceeded to the inverse demand of electron stated on the Diels Alder cycloaddition in between the TCO and tetrazine along with the reduction of nitrogen.

This is the reason why the properties of tetrzine in the click chemistry has the method of choice for the labeling and crosslinking of its biomolecules in the living cells. Tetrazines has apparently two main types and is widely applied. Six methyl substituted tetrazine is one and the other would be the six hydrogen substituted tetrazines.

The one with methyl substitute has exhibit a relatively high stability even if its dissolve to aqueous media. But, it still is offering a fast reaction into the kinetics with the TCO derivatives than any of the biorthogonal reaction pairs. Thus, they as well are known to tolerate a vast array of reaction conditions.

This kind of tetrazine makes a prime choice for any application such as protein labeling. On the other hand, one with the hydrogen substitute has shown a lower stability and an obvious less tolerance to any harsh reaction condition. However, it offers an extremely fast reactions to the kinetics. This reaction could be seen in the application like vivo imaging.

Next is six hydrogen substituted kinds of tetrazines where it only presents quite low stability and a lower tolerance when exposed to a harsh reaction. But, even so it still does give the same fast reaction on kinetics. That made its way to application such as vivo imaging.




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