Cyclopropannulation refers to the process of forming a cyclic compound with a carbon-carbon triple bond, typically through the use of a diazo compound. However, there are several synonyms for this process, including: 1. Cyclopropanation: the formation of a cyclopropane ring by the addition of a carbon-carbon double bond to a double bond in an organic compound. 2. Cyclopropenation: similar to cyclopropanation, but instead of adding a carbon-carbon double bond, a carbon-carbon triple bond is added. 3. Cyclopropylation: the process of introducing a cyclopropyl functional group into an organic compound through the use of a cyclopropane derivative. Overall, these synonyms all refer to the formation of a cyclic compound with a carbon-carbon triple bond, but they differ slightly in the specific reactions and techniques used to achieve this.