Describe your assessment plan for this patient (spondylolisthesis versus lumbar sprain).

1. A 23-year-old man comes to you complaining of a low backache. He works as a dishwasher, and although the pain has been present for 5 months, he has not missed any work. The pain gets worse as the day progresses and is relieved by rest. X-rays reveal some sclerosis in the area of the sacroiliac joints. Describe your assessment plan for this patient (ankylosing spondylitis versus lumbar sprain).

2. A 13-year-old female gymnast comes to you complaining of low back pain. The pain increases when she extends the spine. Like most gymnasts, she is hypermobile in most of her joints. Describe your assessment plan for this patient (spondylolisthesis versus lumbar sprain).

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Write the structure for the quinoxaline derivative obtained when benzil is the reactant.

i.            1,2-Dicarbonyl compounds, such as benzil, can be characterized by reaction with o-phenylenediamine to form a substituted quinoxaline: (a)    Write the structure for the quinoxaline derivative obtained when benzil is….

v

i.            Alkynes can be hydrated in the presence of acid and HgSO4 by electrophilic addition of a molecule of water to the triple bond. The reaction proceeds by way of a….

  What starting materials would you use to prepare each of the following compounds by the Diels–Alder reaction?

i.            What starting materials would you use to prepare each of the following compounds by the Diels–Alder reaction? ii.            Diels–Alder reactions with benzene are rare, and require a very reactive….