The reactions tolerated a wide variety of aromatics with substituents on various positions and with different electronic properties (3e-p). 1-Naphthyl and 2-naphthyl substituted silyl enol ethers worked well to form the corresponding products (3q and 3r). The structure of cycloadduct 3r was unambiguously confirmed by single crystal X-ray diffraction analysis. Heterocycles commonly used in medicinal chemistry such as furan and thiophene were compatible, giving their corresponding bicycles (3s and 3t) in good yields. Additionally, silyl enol ethers bearing alkenyl and alkynyl groups were readily converted into the corresponding cycloadducts (3u and 3v) in high yields. Importantly, the reactions with aliphatic substituted silyl enol ethers with pendant functional groups such as chloride (3y), silyl ether (3z), olefin (3aa), electron-rich arene (3ab), and cyclopropane (3ac) performed well to furnish the corresponding cycloadducts in 47-90% yields.