共查询到20条相似文献,搜索用时 0 毫秒
1.
2.
3.
V. B. Sokolov A. N. Ivanov T. A. Epishina I. V. Martynov 《Russian Chemical Bulletin》1987,36(6):1314-1315
Conclusions Depending on the reaction conditions, 2,2,3,3-tetrafluoropropyi dichlorophosphate and 1,1,2-trichloro-1-nitrosoethane give either O-chloromethylchloroformiminodichlorophosphate or O-chloromethylchloroformimino-O-2,2,3,3-tetrafluoropropylchlorophosphate.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 6, pp. 1422–1423, June, 1987. 相似文献
4.
Andrew E. Feiring Michael C. Hovey Samuel D. Arthur 《Journal of fluorine chemistry》1984,24(1):125-132
Perfluoroalkylethylenes react with some carbon-, oxygen-, sulfur-, selenium-, nitrogen-, and phosphorus-based nucleophiles by formal SN2′ displacement of fluoride ion. 相似文献
5.
6.
7.
Reaction of nucleophiles with enyne triflates R1R2CC(OTf)CCR31, via an SN-2′ process, results in functionalized enynes by way a 1,3-hydride shift from the initially formed butatrienes. 相似文献
8.
9.
10.
The treatment of octafluorocyclopentene with organolithium reagents gave the corresponding symmetrical disubstituted perfluorocyclopentenes in good to high yields. The reaction with Grignard reagents led to the monosubstituted perfluorocyclopentenes, which were subjected to the further nucleophilic substitution reaction using another Grignard or aryllithium reagents, unsymmetrical disubstituted perfluorocyclopentenes being obtained in high yields. 相似文献
11.
Graham Pattison Graham Sandford Emma V.B. Wallace Dmitry S. Yufit Judith A.K. Howard John A. Christopher David D. Miller 《Journal of heterocyclic chemistry》2008,45(1):143-147
12.
B. V. Koshcheev A. M. Maksimov V. E. Platonov V. V. Shelkovnikov 《Russian Journal of Organic Chemistry》2017,53(7):1012-1016
Reactions of 1-(difluoromethanesulfinyl)pentafluorobenzene with sodium methoxide, sodium phenoxide, potassium hydrosulfide, and methylamine resulted in substitution of fluorine atom in the 4-position (in the reaction with methylamine, also in the 2-position). Treatment of the title compound with sodium hydroxide afforded pentafluorobenzene due to cleavage of the Carom?S bond. 相似文献
13.
Senatore M Lattanzi A Santoro S Santi C Della Sala G 《Organic & biomolecular chemistry》2011,9(18):6205-6207
The first example of meso-aziridine desymmetrization with selenium nucleophiles is reported. The reaction, promoted by VAPOL-hydrogen phosphate using (phenylseleno)trimethylsilane as the nucleophile, proves to be very general and highly enantioselective (84-99% ee). 相似文献
14.
15.
16.
U. G. Ibatullin S. A. Vasil'eva Z. Kh. Karimova M. G. Safarov 《Chemistry of Heterocyclic Compounds》1990,26(11):1218-1221
Reaction of 4-methyl-3,4-epoxytetrahydropyran with phenols, thiols, thiocyanic acid and benzoic acid, thiourea, and with sodium sulfite and thiosulfate occurs with opening of the epoxide ring. Using IR spectroscopy it was shown that the products occur via trans-diaxial opening of the oxide ring at the least-substituted carbon atom.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 11, pp. 1465–1468, November, 1990. 相似文献
17.
T. é. Bezmenova T. N. Varshavets A. Ya. Bezmenov 《Chemistry of Heterocyclic Compounds》1974,10(4):406-408
Reaction of 2-sulfolene, 4-hydroxy-2-sulfolene, 4-bromo- and 3-chloro-2-sulfolenes, 3-chloro-4-hydroxysulfolane, and 3,4-dibromo(dichloro)sulfolanes with sodium methane-, hexane-, allene-, benzene-, and p-toluenesulfinates and magnesium gave 3-methyl-, 3-hexyl-, 3-allyl-, 3-phenyl-, and 3-(p-tolylsulfonyl)sulfolanes, 3-methyl-, 3-phenyl-, and 3-(p-tolylsulfonyl)-4-hydroxysulfolanes, and 3-phenyl- and 4-phenylsulfonyl-2-sulfolenes. 相似文献
18.
F. A. Gimalova V. A. Egorov S. A. Torosyan M. S. Miftakhov 《Russian Journal of Organic Chemistry》2007,43(7):981-983
5-Allyl-2,3,5-trichloro-4,4-dimethoxycyclopent-2-en-1-one reacts with L-proline and L-methionine methyl esters to give diastereoisomeric mixtures of the corresponding chlorine replacement products at C3. 相似文献
19.
Here is reported the chemoselective opening of the amide bond on a Vince lactam derivative with amines, without the cleavage of the epoxide-moiety, getting five new epoxides. Also reported is the rearrangement of the epoxides into the respective five new oxazolidinones with the use of BF3·Et2O. Crystal structures of some molecules and hydrogen bonding interactions are discussed. 相似文献