Ligand dependence of molybdenum-catalyzed alkylations. Molybdenum-isonitrile complexes as a new class of highly reactive alkylation catalysts
作者:Barry M. Trost、Craig A. Merlic
DOI:10.1021/ja00182a018
日期:1990.12
generates the most effective molybdenum catalysts known to date. The reactive catalyst proved to be Mo(RNC) 4 (CO) 2 . With this new catalyst, a much broader range of substrates can be employed including many that failed or reacted very poorly by using molybdenumhexacarbonyl. The regioselectivity also differs from that obtained with molybdenumhexacarbonyl. The stereochemistry of the reaction proceeds with
A ketal-tethered RCM strategy toward the synthesis of spiroketal related natural products
作者:Sunil K. Ghosh、Changhong Ko、Jia Liu、Jiashi Wang、Richard P. Hsung
DOI:10.1016/j.tet.2006.06.113
日期:2006.11
An unconventional approach to construct spiroketals and spiroaminals via ring-closing metathesis [RCM] of cyclic ketals and aminals, respectively, is described here. This method possesses a good generality with no loss of stereochemical integrity at the spirocenter under the standard RCM conditions. This approach has been applied to the synthesis of an insect pheromone to demonstrate its synthetic
Ketal-tethered ring-closing metathesis. An unconventional approach to constructing spiroketals and total synthesis of an insect pheromone
作者:Sunil K Ghosh、Richard P Hsung、Jiashi Wang
DOI:10.1016/j.tetlet.2004.05.017
日期:2004.7
An unconventional approach to constructing spiroketals via ring-closing metathesis of cyclic ketals is described here. This method possesses a good generality with no loss of stereochemical integrity at the spiro center under standard RCM conditions. This approach has been applied to the synthesis of an insect pheromone to demonstrate its synthetic potential. (C) 2004 Elsevier Ltd. All rights reserved.
Tandem alkylation-cycloadditions. Control by transition-metal templates
作者:Barry M. Trost、Mark Lautens、Ming Hong Hung、Carol S. Carmichael
DOI:10.1021/ja00336a066
日期:1984.11
TROST, B. M.;LAUTENS, M.;HUNG, MING-HONG;CARMICHAEL, C. S., J. AMER. CHEM. SOC., 1984, 106, N 24, 7641-7643
作者:TROST, B. M.、LAUTENS, M.、HUNG, MING-HONG、CARMICHAEL, C. S.