CN
Search Within
569747
应用筛选条件
关键词:'569747'
显示 1-15 共 15 条结果 关于 "569747" 范围 论文
A modified three-field technique for breast treatment.
Svensson GK, et al.
International Journal of Radiation Oncology, Biology, Physics, 6(6), 689-694 (1980)
Schrodi, Y.; Pederson, R.L.
Aldrichimica Acta, 40, 45-45 (2007)
D L Wright et al.
Organic letters, 3(26), 4275-4277 (2002-01-11)
The ring-opening cross-metathesis of oxabicyclo[3.2.1]octene derivatives provides a convenient method for preparing differentially substituted 4-pyrones. The major competing reaction is the ring-opening metathesis polymerization of the bridged olefin. Studies on this reaction have shown that substituents on the bicyclic alkene
A K Chatterjee et al.
Organic letters, 1(11), 1751-1753 (2000-06-03)
[formula: see text] Trisubstituted alkenes have been prepared for the first time via intermolecular olefin cross-metathesis, using 1,3-dimesityl-4,5-dihydroimidazol-2-ylidene ruthenium alkylidene complexes 3a,b in good yields with moderate E selectivity. In addition, protected alcohols near the geminal disubstituted olefin improve reactivity
M Scholl et al.
Organic letters, 1(6), 953-956 (2000-05-24)
[formula: see text] A new family of 1,3-dimesityl-4,5-dihydroimidazol-2-ylidene-substituted ruthenium-based complexes 9a-c has been prepared starting from RuCl2(=CHPh)(PCy3)2 2. These air- and water-tolerant complexes were shown to exhibit an increased ring-closing metathesis activity at elevated temperature when compared to that of
Total synthesis of amphidinolide Y by formation of trisubstituted (E)-double bond via ring-closing metathesis of densely functionalized alkenes
Jin Jian, et al.
Organic Letters, 9(13), 2585-2588 (2007)
Shawn J Stachel et al.
Journal of medicinal chemistry, 49(21), 6147-6150 (2006-10-13)
A macrocyclic inhibitor of beta-secretase was designed by covalently cross-linking the P1 and P3 side chains of an isophthalamide-based inhibitor. Macrocyclization resulted in significantly improved potency and physical properties when compared to the initial lead structures. More importantly, these macrocyclic
J A Smulik et al.
Organic letters, 2(15), 2271-2274 (2000-08-10)
The Grubbs 1,3-dimesityl-4,5-dihydroimidazol-2-ylidene-substituted ruthenium complex 1 catalyzed ethylene-alkyne cross-metathesis and was shown to tolerate free hydroxyl groups and coordinating functionality at the propargylic and homopropargylic positions. Hindered and enantiomerically enriched 1-substituted alkynes also react efficiently under the reported conditions.
Ruthenium-based heterocyclic carbene-coordinated olefin metathesis catalysts.
Georgios C Vougioukalakis et al.
Chemical reviews, 110(3), 1746-1787 (2009-12-17)
Synthesis of coumarins by ring-closing metathesis using Grubbs? catalyst
Van Tuyen N, et al.
Tetrahedron Letters, 44(22), 4199-4201 (2003)
Reversible inhibition/activation of olefin metathesis: a kinetic investigation of ROMP and RCM reactions with Grubbs' catalyst
P'Poo SJ and Schanz H-J
Journal of the American Chemical Society, 129(46), 14200-14212 (2007)
Synthesis of symmetrical trisubstituted olefins by cross metathesis
Chatterjee AK, et al.
Organic Letters, 4(11), 1939-1942 (2002)
Novel cleavage of (E)-allyl vic-diols to aldehydes using the 2nd-generation Grubbs catalyst
H Chunguang and U Daisuke
Tetrahedron Letters, 49(49), 6988-6990 (2008)
Highly selective cross-metathesis with phenyl vinyl sulphone using the `second generation?Grubbs? catalyst
Grela K and Bieniek M
Tetrahedron Letters, 42(36), 6425-6428 (2001)
T M Trnka et al.
Accounts of chemical research, 34(1), 18-29 (2001-02-15)
In recent years, the olefin metathesis reaction has attracted widespread attention as a versatile carbon-carbon bond-forming method. Many new applications have become possible because of major advances in catalyst design. State-of-the-art ruthenium catalysts are not only highly active but also
1/1