253436-80-5Relevant academic research and scientific papers
Gold-catalyzed cyclization of 1,6-diynyl dithioacetals: Via 1,7-carbene transfer and aromatic C-H functionalization
Xu, Wei,Chen, Ming,Sun, Ning,Liu, Yuanhong
, p. 11000 - 11003 (2016/09/09)
A gold-catalyzed cyclization of 1,6-diynyl dithioacetals has been developed, which provides an attractive route to diverse-substituted benzo[a]fluorene derivatives. The reaction is initiated through 1,2-sulfur migration of a propargyl dithioacetal moiety to generate a vinyl gold carbene, which is followed by carbene transfer to the remaining alkyne and aromatic substitution to furnish the fused products in generally good to high yields.
A Rh-catalyzed 1,2-sulfur migration/aza-Diels-Alder cascade initiated by aza-vinyl carbenoids from sulfur-tethered N-sulfonyl-1,2,3-triazoles
Jiang, Yu,Tang, Xiang-Ying,Shi, Min
supporting information, p. 2122 - 2125 (2015/02/05)
A novel Rh(ii) catalyzed intramolecular 1,2-sulfur rearrangement/intermolecular aza-Diels-Alder cascade initiated by azavinyl carbenes has been developed, efficiently affording sulfur-containing tetrahydropyridine derivatives or α,β-unsaturated imines wit
A convenient synthesis of propargylic dithioacetals
Huang, Li-Fu,Lee, Chin-Fa,Tseng, Jui-Chang,Luh, Tien-Yau
, p. 3173 - 3175 (2008/02/13)
Treatment of trimethylsilyl-substituted alkynyl ketones with 1,2-ethanedithiol in the presence of BF3·OEt2 in methanol afforded the corresponding dithioacetal. Removal of the silyl group under basic conditions followed by palladium-catalyzed coupling reactions with aryl iodides yielded the corresponding propargylic dithioacetals in excellent yield. Georg Thieme Verlag Stuttgart.
