it is important to take both thestrengths and shortcomings of this theory into consideration, andmaximize the effective utilization in a most beneficial way.1. Michael Long ’ s Interaction Hypothesis1.1 Main Claims of Michael Long ’ s Interaction Hypothesis...
单映. An Analysis of Michael Long's Interaction Hypothe- sis in Second Language Acquisition [J]. 科技信息, 2009,( 29) : 227.单映.An Analysis of Michael Long’s Interaction Hypothesis in Second Language Acquisition[J]. 科技信息.2009(29)An Analysis of Michael Long’s Interaction Hypothesis ...
long chain In order to experimentally confirm the hypothesis, the accurate mass of X-13431 was determined. Its neutral mass 301.22476 supported the formula C16H31NO4, which also is consistent with the hypothesis of a C9 carnitine. Exact mass, fragmentation pattern and chromatographic retention time...
The straightforward construction of polysubstituted arenes is essential in both synthetic chemistry and medicinal chemistry. Herein, we reported a DBU promoted Michael addition/cyclization/elimination cascade reaction between vinylogous malononitrile derivatives and chlorinated nitrostyrenes for the synthesis of ...