The stereospecific reagent-controlled homologation (StReCH) of boronic esters with putative lithiooxiranes generated in situ from appropriate precursors via sulfoxide-lithium exchange, tin-lithium exchange, and direct lithiation is described with an emphasis on the first lithiation technique which allows for the regio- and stereo-specific generation of all types of lithiooxirane isomer. Transient...
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sulfinylepoxides [p-
TolS(O)CR
2
(O)CR
3
R
3'
] from enantioenriched sulfoxide containing precursors: (i) a
Surface transient storage (STS) and hyporheic transient storage (HTS) have
functional significance in stream ecology and hydrology. Both provide refugia for aquatic
communities and their longer mean residence times (compared to the main flow) increase
the potential for biogeochemical reactions that can improve water quality. As STS and
HTS have...
We present an approach for generating a character’s response in anticipation of
an impending impact. Protective anticipatory movement is built upon several
simple actions that have been identified as response mechanisms in monkeys
and in humans. These actions are parameterized by a model of the interaction
based on the approaching...
Himalayan collision produced frontal and lateral
ramps and associated Pliocene to Quaternary tectonic
geomorphic features in the foreland fold-thrust belt of
northwestern Pakistan. The transpressional right-lateral
Kalabagh tear fault zone displaced the emergent Surghar
Range frontal thrust from the western Salt Range by 16-19
km since 1.9-2.1 Ma: the age...
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McDougall, his
brother, Bob McDougall, his friends, Scott Hughes and
Vivian Golightly, and especially his