Diels-alder cyclization of 2,8,10-undecatrienals as a route to 1,2,3,4,4a,5,6,8a-octahydronaphthalenes
作者:James A. Marshall、James E. Audia、Jonathan Grote、Barry G. Shearer
DOI:10.1016/s0040-4020(01)90578-2
日期:1986.1
2,8,10-Undecatrienals have been found to undergo facile Diels-Alder cyclization upon treatment with alkylaluminum chlorides in methylene chloride at low temperature. The reaction is highly endo-selective. Protected alcohol substituents at the C-4 and C-7 positions are fully accommodated and TBDMS protected alcohols show a strong axial preference. The methodology has been applied to a hydronaphthalenecarboxylic
Assessment of Spirit Yield in Barley Breeding Lines
作者:J. S. Swanston、W. T. B. Thomas、W. Powell、R. Meyer、T. A. Bringhurst、S. Y. Pearson、J. M. Brosnan、A. Broadhead
DOI:10.1002/j.2050-0416.2000.tb00040.x
日期:——
of random inbred lines of barley, grown at two sites, were assessed for high gravity spirityield. A range of values was obtained and there was good agreement, for nearly all samples, between high gravity spirityield and spirityield predicted from extracts and fermentabilities measured by Institute of Brewing recommended methods. One sample, which gave a low predicted spirityield but good high gravity