Bifunctional Polymeric Organocatalysts and Their Application in the Cooperative Catalysis of Morita–Baylis–Hillman Reactions
作者:Cathy Kar-Wing Kwong、Rui Huang、Minjuan Zhang、Min Shi、Patrick H. Toy
DOI:10.1002/chem.200601197
日期:2007.3.5
these polymeric reagents contained either alkyl alcohol or phenol groups on the polymer backbone. The use of these materials as organocatalysts in a range of Morita-Baylis-Hillman reactions indicated that hydroxyl groups could participate in the reactions and accelerate product formation. In the cases examined, phenol groups were more effective than alkyl alcohol groups for catalyzing the reactions
Some unusual reactions of molecular oxygen with bicyclic diazenes which typically serve as precursors to alkylidenecyclopenane-1,3-diyls; peroxide formation
作者:R. Daniel Little、Lorraine Losiski-Dang、Manuel G. Venegas、Craig Merlic
DOI:10.1016/s0040-4039(00)85938-9
日期:1983.1
The reaction of a series of substituted bicyclic diazenes with oxygen was investigated. Three types of products result, namely ketoalcohols 2b-f, ketoaldehydes 4e-g and dioxolanes 3e-g. The potential intermediacy of an endoperoxide 5f is considered.