A new method for the synthesis of [3]-cumulenes and eneynecumulenes related to neocarzinostatin chromophore
摘要:
A convenient method for the synthesis of [3]-cumulenes based on a Horner-Emmons type reaction of allenyldiphenylphosphine oxides with aldehydes or ketones has been described. A facile two-step synthesis of eneynecumulenes has been accomplished by this method.