Synthesis of N-benzylidene- and N-alkylidene(3,3-dialkyl-3,4-dihydroisoquinolin-1(2H)-ylidene)acetohydrazides via the Ritter reaction
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DOI: 10.1007/s10593-020-02700-w
Abstract: The Ritter cyclocondensation of 2-methyl-1-phenylpropan-2-ols with cyanoacetohydrazide hydrazones in PhMe–H2SO4 medium at 60–70°С for 20 min resulted in the formation of N-benzylidene- and N-alkylidene(3,3-dialkyl-3,4-dihydroisoquinolin-1(2H)-ylidene)-acetohydrazides. The product of β-C-carbamoylation of the enamine moiety was also obtained. read more here.
Keywords: dihydroisoquinolin ylidene; ritter; dialkyl dihydroisoquinolin; benzylidene alkylidene ... See more keywords
From catastrophic collapse to multi-phase deposition: Flow transformation, seafloor interaction and triggered eruption following a volcanic-island landslide
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DOI: 10.1016/j.epsl.2019.04.024
Abstract: Abstract The current understanding of tsunamis generated by volcanic-island landslides is reliant on numerical models benchmarked against reconstructions of past events. As the largest historical event with timed tsunami observations, the 1888 sector collapse of… read more here.
Keywords: ritter; collapse; landslide; volcanic island ... See more keywords
The Child’s Eye: Architectural Expertise and Childhood Creativity in the Writings of Paul Ritter (1925–2010)
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DOI: 10.1080/20507828.2020.1740476
Abstract: Abstract This paper seeks to reveal how the concept of childhood creativity was woven into the fabric of architectural discourse in the mid twentieth century. It focuses on the architect-educator Paul Ritter (1925–2010), who taught… read more here.
Keywords: ritter; childhood creativity; ritter 1925; 1925 2010 ... See more keywords