Are there alternatives to 2-Cyanoacrylic acid (CAS: 15802-18-3) in synthesis?

While 2-Cyanoacrylic acid (CAS: 15802-18-3) is a versatile starting material, there are alternatives depending on the specific application. For example, cyanoacrylate esters can be used as more reactive alternatives in some synthesis routes. Isopropyl cyanoacrylate and ethyl cyanoacrylate are common isomers that can serve as substitutes in certain cases. Additionally, alternative reagents such as cyanoacrylamides may offer specific advantages in particular reactions.