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The Buchner ring expansion is a two-step organic C-C bond forming reaction used to access 7-membered rings. The first step involves formation of a carbene from ethyl diazoacetate , which cyclopropanates an aromatic ring.
Cyclopropanation is also stereospecific as the addition of carbene and carbenoids to alkenes is a form of a cheletropic reaction, with the addition taking place in a syn manner. For example, dibromocarbene and cis -2-butene yield cis -2,3-dimethyl-1,1-dibromocyclopropane, whereas the trans isomer exclusively yields the trans cyclopropane.
Eduard Buchner (German: [ˈeːduaʁt ˈbuːxnɐ] ⓘ; 20 May 1860 – 13 August 1917) was a German chemist and zymologist, awarded the 1907 Nobel Prize in Chemistry for his work on fermentation. [ 1 ]
Growth hormone treatment is a safe and effective therapy that’s often used to treat children and adults with a deficiency in human growth hormone (also known as HGH or somatropin).
A nursing care plan promotes documentation and is used for reimbursement purposes such as Medicare and Medicaid. The therapeutic nursing plan is a tool and a legal document that contains priority problems or needs specific to the patient and the nursing directives linked to the problems. It shows the evolution of the clinical profile of a patient.
The Nursing Interventions Classification (NIC) is a care classification system which describes the activities that nurses perform as a part of the planning phase of the nursing process associated with the creation of a nursing care plan.
The U.S. Commerce Department said on Thursday it is considering new rules that would impose restrictions on Chinese drones that would restrict or ban them in the United States citing national ...
Andy Cohen is spilling the tea on what it's like working with longtime friend and colleague Anderson Cooper. Before SiriusXM's 10th Annual Radio Andy Holiday Hangout (which he co-hosts with Amy ...