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For the first time, the (E)‐1,2‐difluoro‐2‐(pentafluoro‐λ6‐sulfanyl)ethenyl group has been bonded to λ3σ3 phosphorus using a Grignard reagent. Similar phosphorus derivatives containing the (Z)‐1,2,3,3,3‐pentafluoropropenyl moiety were also synthesized for comparison. In three cases,...
The reaction behavior of [XeF][AsF6] in solution toward hydrogen iodide, HI, was investigated, and Xe, HF, and [I4][AsF6]2 were identified as the final reaction products. The reaction enthalpy of the gas‐phase reaction ([XeF]+ + HI → [XeI]+ (1Σ) + HF) was calculated at the optimized MP4(SDQ)...
1,6aλ4‐Dithia‐6‐azapentalenes (7a)–(7h), (12a), and (12b) have been synthesized by the reaction of 5‐aryl‐3‐benzylidene‐3H‐1,2‐dithioles with isonitriles in the presence of phosphoryl chloride and by the reaction of 3‐benzyl‐ and 3‐methyl‐1λ4, 2‐dithiol‐1‐ylium salts with isonitriles. Possible...
Diisopropyl [bis(trimethylsilylamino)methyl]‐boronate, the analogous pinacol boronic ester (3), andpinacol [(2,2,5,5‐tetramethyl‐2,5,1‐disilazol‐1‐yl)‐methyl]boronate (8) were prepared from the corresponding (bromomethyl)boronic ester 1 or 2 and silylated lithium amide. Reaction of 3 or 8 with...
C‐phosphorylation of N‐vinylpyrroles with phosphorus(III) halides is shown to occur both at position 2 of the pyrrole ring and at the vinyl group. The properties of the resulting phosphorus‐containing heterocyclic compounds and bis‐phosphorylated N‐vinylpyrroles are reported. © 1997 John Wiley &...
Modification of the conditions described for the preparation of triarylmethylphosphonous acids from hypophosphorous acid and triarylmethanols allows facile reduction of the C–O–H linkage to the C–H linkage. © 1997 John Wiley & Sons, Inc. Heteroatom Chem 8:501–503, 1997
The reaction of 1,1‐bis(dialkylamino)ethenes (3) with an equimolar amount of disulfur dichloride in the presence of triethylamine affords the stable inner salts 2,2‐bis(dialkylamino)‐2‐ethylium‐1‐dithioates (1) in good yields. © 1997 John Wiley & Sons, Inc. Heteroatom Chem 8:505–508, 1997
Results of IR and 1H, 13C, and 31P NMR studies of the anancomeric title compounds (2–5) and compound 1 (Scheme 1) are analyzed to search for the existence of high‐energy boat or twist‐boat conformations in the equatorial epimers. While the difference in frequencies (Δν)P=O between the axial and...
Reactions of hydridophosphorane 3 with Vilsmeier reagents, HCONR1R2/POCl3, afford novel N,N‐disubstituted amino bisphosphoranyl methanes4. The formation of 4 might occur via the intermediate 5, which then reacts further with excess 3. © 1997 John Wiley & Sons, Inc. Heteroatom Chem 8: 517–520, 1997
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