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2025 ; 16
(1
): 9181
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1,1-polymerization of acetylene
#MMPMID41102165
Cheng T
; Qiu J
; Yang Z
; Li S
; Jiang H
; Zhu S
Nat Commun
2025[Oct]; 16
(1
): 9181
PMID41102165
show ga
The polymerization of alkynes has long been a cornerstone of materials science,
yielding a plethora of ?-bond-rich materials and underpinning the 2000 Nobel
Prize in Chemistry. While 1,2-polymerization of alkynes via 1,2-addition has been
extensively studied, the 1,1-polymerization of carbon carbon triple bonds remains
a formidable challenge due to the necessity of an alkyne rearrangement step
during polymerization. Here we report the 1,1-polymerization of acetylene gas
through a Cd-catalyzed iterative 1,1-carboboration process, achieving a broad
terminal functionalization scope and functional group compatibility. This
product, 1,1-polyacetylene (1,1-PA), also named as dendralene, exhibits unique
physical and chemical properties, including an explosive tendency, distinguishing
it from the 1,2-polyacetylene (1,2-PA) counterparts.