Lutteke, Ginger published the artcileFormation of bicyclic pyrroles and furans through an enone allene photocycloaddition and fragmentation sequence, Name: (4-Bromobut-1-yn-1-yl)trimethylsilane, the publication is European Journal of Organic Chemistry (2008), 925-933, database is CAplus.
The [2 + 2] photocycloaddition of dimedone-substituted allenes was studied. Irradiation of a solution of these substrates in acetonitrile at 300 nm resulted in the clean conversion of the starting materials into a mixture of photoproducts. The major product in all cases was a bicyclic pyrrole or furan fused to an eight membered ring (43-70% yield). The formation of these products is thought to be a result of a heteroatom-induced fragmentation of the straight adduct. This is supported by irradiation of 3-(penta-3,4-dienyl)cyclohex-2-en-1-one which allowed the isolation of tricyclic adduct after catalytic hydrogenation in 27 %. The minor crossed photoproducts were isolated in 10-20% yield. The observed major/minor ratio of 4:1 was not affected by the variation of substituents on the cyclohexene ring. Introduction of a substituent on the allene had a more significant effect on the ratio which changed to 2:1.
European Journal of Organic Chemistry published new progress about 69361-41-7. 69361-41-7 belongs to bromides-buliding-blocks, auxiliary class PROTAC Linker,Aliphatic Linker, name is (4-Bromobut-1-yn-1-yl)trimethylsilane, and the molecular formula is C7H13BrSi, Name: (4-Bromobut-1-yn-1-yl)trimethylsilane.
Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary