Benzil-di-(.beta.-succinimidoethyl)ketal of the following structural formula ##STR1## and novel benzil ketal derivatives thereof. The novel benzil ketal derivatives are characterized by having a structure in which a 5- or 6-membered cyclic imidecontaining group is bonded to each of the two oxygen atoms of ketal. Because these compounds have a high decomposition or sublimation temperature and the ability to initiate photopolymerization, they are useful as photopolymerization initiators in the production of photopolymerizable shaped articles from a molten blend of a photopolymerizable thermoplastic polymer composition.
Enantioselective Synthesis of the 1,3‐Dienyl‐5‐Alkyl‐6‐Oxy Motif: Method Development and Total Synthesis
作者:Jie Wang、Chuning Guo、Yaqian Liu、Yunpeng Ji、Hongli Jia、Houhua Li
DOI:10.1002/anie.202400478
日期:2024.4.8
Method development and totalsynthesis have resulted in the enantioselective synthesis of the 1,3-dienyl-5-alkyl-6-oxy motif, and thus expedient total syntheses of three types of natural products (glutarimideantibiotics, α-pyrone polyketides and Lupin alkaloids), completed within 4–7 steps.