Employment of Palladium Pincer-Complexes in Phenylselenylation of Organohalides
作者:Olov A. Wallner、Kálmán J. Szabó
DOI:10.1021/jo051266x
日期:2005.11.1
Palladium pincer-complex-catalyzed selenylation of propargyl-, allyl-, benzyl-, and benzoyl halides could be achieved under mild reaction conditions employing trimethylstannylphenylselenide as selenylating agent. This reaction has a high functional group tolerance as carbmethoxy, tosylamino, nitro, aryl bromide, and unprotected hydroxy groups are tolerated. Mechanistic studies indicate that the catalytic
Highly regio- and stereoselective four-component iodoamination of Se-substituted allenes. an efficient synthesis of N-(3-organoseleno-2-iodo-2(Z)-propenyl) acetamidesElectronic supplementary information (ESI) available: experimental section. See http://www.rsc.org/suppdata/cc/b3/b300879g/
作者:Shengming Ma、Xueshi Hao、Xian Huang
DOI:10.1039/b300879g
日期:2003.4.16
Z-Selectivity was observed for iodohydroxylation of Se-substituted allenes with I2 and H2O, which is opposite to that of 1,2-allenyl sulfoxides. With n-hexane as the co-solvent Z-iodoamination leading to N-(3-organoseleno-2-iodo-2(Z)-propenyl)acetamide was observed. A brief rational for the stereoselectivity of this reaction is provided.
Synthesis of [3-(trimethylsilyl)prop-2-yn-1-yl] selenides
作者:M. V. Musalov、M. V. Andreev、S. V. Amosova、L. I. Larina、V. A. Potapov
DOI:10.1134/s1070428017100049
日期:2017.10
Efficient and selective methods have been developed for the synthesis of previously unknown organyl [3-(trimethylsilyl)prop-2-yn-1-yl] selenides, organyl prop-2-yn-1-yl selenides, and bis[3-(trimethylsilyl) prop-2-yn-1-yl] selenide by reactions of 3-bromo-1-(trimethylsilyl)prop-1-yne with the corresponding organylselenolates and sodium selenide generated from diorganyl diselenides or elemental selenium