72612-59-0Relevant academic research and scientific papers
Asymmetric synthesis of chiral dihydrothiopyrans via an organocatalytic enantioselective formal thio [3 + 3] cycloaddition reaction with binucleophilic bisketone thioethers
Wang, Shengzheng,Zhang, Yongqiang,Dong, Guoqiang,Wu, Shanchao,Zhu, Shiping,Miao, Zhenyuan,Yao, Jianzhong,Li, Hao,Li, Jian,Zhang, Wannian,Sheng, Chunquan,Wang, Wei
supporting information, p. 5570 - 5573 (2013/11/19)
An unprecedented organocatalytic highly enantioselective approach to a 3,4-dihydro-2H-thiopyran scaffold with two contiguous stereogenic centers has been implemented through a formal thio [3 + 3] cycloaddition process involving a Michael-aldol condensation cascade sequence. Notably, a new class of binucleophilic bisketone thioethers is designed for the process. Furthermore, the fine-tuning of their reactivity enables the cascade process to proceed with highly regioselectively.
PREPARATION OF AN α,β-TYPE OF TER- AND SEPTITHIOPHENES
Nakayama, Juzo,Murabayashi, Shigeru,Hoshino, Masamatsu
, p. 2599 - 2602 (2007/10/02)
An α,β-type of thiophenes oligomers, 2,3':4',2"-terthiophene and 2,3':4',2'':5'',3''':4''',2'''':5'''',3''''':4''''',2''''''-septithiophene, were synthesized through intramolecular reductive coupling reaction of diketo sulfides with a low-valent titanium reagent.
