Double C(sp3)-H bond functionalization mediated by sequential hydride shift/cyclization process: diastereoselective...

Area of Science:

• Organic Chemistry
• Synthetic Chemistry

Background:

• C-H bond functionalization is a key area in synthetic chemistry.
• Developing novel methods for creating complex molecular structures is crucial.

Purpose of the Study:

• To describe two novel double C(sp(3))-H bond functionalization reactions.
• To demonstrate the construction of bicyclo[3.2.2]nonane and linear tricyclic skeletons.

Main Methods:

• Utilizing a sequential hydride shift/cyclization process.
• Employing specific hydride shift sequences ([1,6]/[1,5] and [1,4]/[1,5]) to control reactivity.

Main Results:

• Successful construction of the bicyclo[3.2.2]nonane skeleton via a [1,6]- and [1,5]-hydride shift sequence.
• Efficient synthesis of a linear tricyclic skeleton through sequential [1,4]- and [1,5]-hydride shifts.

Conclusions:

• The described methods offer novel pathways for complex skeleton construction.
• These reactions expand the toolkit for C(sp(3))-H functionalization in organic synthesis.