共查询到20条相似文献,搜索用时 281 毫秒
1.
2.
3.
4.
5.
A. M. Turuta T. M. Fadeeva A. V. Kamernitskii A. A. Korobov E. G. Cherepanova L'yru Dyk Khu 《Russian Chemical Bulletin》1990,39(3):595-601
The use of a dicobalt hexacarbonyl protective group permitted us to carry out the stereospecific conversion of 17-hydroxy-17-ethynylsteroids into branched 17-R-substituted 17-ethynylsteroids (R-OH, OAc, OMe, NCS, and F).Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 3, pp. 675–681, March, 1990. 相似文献
6.
Kurt Utvary Klaus Galle Alan Cowley Atta Arif 《Monatshefte für Chemie / Chemical Monthly》1986,117(11):1245-1256
The reactions of (CH3NPF3)2 and F3P(CH3N)2PF2OCH3 with lithium-1,1,1-trimethyl-N-(trimethylsilyl)-silanamide yield two new dispiro-compounds:XF2P(CH3N)2PF(NSiCH3)2PF(CH3N)2PF2
X withX=F, OCH3. Synthesis, mass-spectra and X-ray structures are discussed.
Herrn Prof. Dr.K. L. Komarek zum 60. Geburtstag gewidmet. 相似文献
7.
The influence of NO on the radiolysis of hexane at ?70°C has been studied. The results allow the following interpretations: The bimolecular part of the hydrogen production is in contrary to N2O efficiently quenched by NO. This part involves non-thermal hydrogen atoms and has a G-value of about 1.4. All olefins are suppressed, probably in a secondary chain reaction with NO. The radical yield is drastically reduced by very low concentrations of NO, but by higher concentrations this decrease is slowed down. A reaction scheme proposed by BURRELL is able to explain these results. 相似文献
9.
10.
11.
《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2007,119(16):3011-3011
12.
《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2006,118(17):2879-2879
13.
《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2009,121(16):3035-3035
14.
《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2011,123(16):3899-3899
15.
《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2003,115(17):2027-2027
16.
《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2004,116(17):2361-2361
17.
《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2002,114(17):3442-3442
18.
《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2012,124(16):4044-4044
19.
《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2005,117(17):2667-2667
20.
《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2010,122(16):3009-3009