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Accessing Carbon, Boron and Germanium Spiro Stereocentres in a Unified Catalytic Enantioselective Approach

Cao, Yi-Xuan  
•
Chauvin, Anne-Sophie  
•
Tong, Shuo
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June 12, 2025
Nature Catalysis

Achieving substrate generality in asymmetric catalysis remains a long-standing goal, particularly for the selective construction of chiral heteroatoms. Compared with carbon, sulfur, phosphorus and silicon stereogenic centres, methods for the construction of their boron and germanium congeners remain very scarce. Chiral (hetero) spirocycles are of relevance in several research domains. Methods effective for constructing carbon-centred chiral spirocycles do not translate to boron and germanium, leaving these chiral centres unexplored. We describe a unified strategy for constructing carbon, boron and germanium-centred chiral spirocyclic skeletons via enantioselective hetero [2+2+2] cycloaddition of a bis-alkyne with a nitrile. A chiral designer Ni(0) N-heterocyclic carbene complex enables the required long-range enantioinduction. The resulting enantio-enriched spirocycles feature a pyridine motif, making them exploitable for ligand design and functional materials featuring attractive photophysical and chiroptical properties.

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Name

10.1038_s41929-025-01352-3.pdf

Type

Main Document

Version

http://purl.org/coar/version/c_970fb48d4fbd8a85

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openaccess

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CC BY

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1.62 MB

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Adobe PDF

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6a8526bfcc55b2252be785b41351a342

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