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[1 + 2] Cycloaddition of a Cyclic (Alkyl)(amino)silylene and a Disilyne Providing a 3-Aminocyclotrisilene
Organometallics ( IF 2.8 ) Pub Date : 2020-01-09 , DOI: 10.1021/acs.organomet.9b00828
Taichi Koike 1 , Shunya Honda 1 , Shintaro Ishida 1 , Takeaki Iwamoto 1
Affiliation  

Despite the notable progress in the chemistry of cycloaddition reactions of silylenes toward unsaturated bonds, such reactions toward a Si≡Si triple bond remain unknown. Herein, we report [1 + 2] cycloaddition of a cyclic (alkyl)(amino)silylene (1) and a dialkyldisilyne (2) to form a 3-aminocyclotrisilene (3). Cyclotrisilene 3 adopts a slightly cis-bent geometry with a relatively long Si═Si double bond in the solid state, suggesting a π(Si═Si)−σ*(Si–N) interaction. Thermolysis of 3 regenerated silylene 1, which was trapped as Et3SiH and toluene adducts at high temperatures.

中文翻译:

[1 + 2]环(烷基)(氨基)亚甲硅烷基和二甲硅烷基提供3-氨基环三甲硅烷基的环加成反应

尽管亚甲硅烷基向不饱和键的环加成反应的化学方面取得了显着进展,但这种对Si 3 Si三键的反应仍然未知。在此,我们报道了环状(烷基)(氨基)亚甲硅烷基(1)和二烷基二甲硅烷基(2)的[1 + 2]环加成反应,形成了3-氨基环三甲硅烷基(3)。环三硅3呈顺式弯曲的几何结构,固态时具有较长的Si═Si双键,表明存在π(Si═Si)-σ*(Si–N)相互作用。热分解3再生的亚甲硅烷1,将其作为捕获的Et 3在高温下的SiH和甲苯加合物。
更新日期:2020-01-09
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