The correct answer is Carbon Dioxide is formed as a result of the sodium bicarbonate wash.
Each of the molecules of carbon dioxide, with the chemical formula CO2, has one carbon atom covalently doubly bonded to two oxygen atoms. It occurs in the gas state at room temperature. Carbon dioxide acts as a greenhouse gas in the atmosphere because it absorbs infrared light rays despite being transparent to visible light. From pre-industrial levels of 280 parts per million (ppm) to a trace gas of 421 ppm, or nearly 0.04% by volume, it has grown (as of May 2022). [9] [10] The combustion of fossil fuels is the primary cause of both these high CO2 concentrations and climate change. Dissolved carbon dioxide is present in the ocean, ice caps, lakes, and groundwater.
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what happens to the stereochemistry of a chiral alcohol when converted to an alkyl bromide with pbr3?
The alcohol is converted into a good leaving group during the "activation" step by forming an O-P bond and displacing Br from P [note that this is essentially nucleophilic substitution at phosphorus].
With phosphorus tribromide (PBr3) or thionyl chloride, alcohols can be converted into alkyl halides (SOCl2).
The reaction with PBr3 involves a configuration inversion at carbon.
The reaction with SOCl2 also occurs with configuration inversion [but check with your instructor to see if the SNi mechanism is covered].
Because it avoids the possibility of carbocation rearrangements, using PBr3 and SOCl2 to convert alcohols to alkyl halides is much more mild and predictable than using HBr or HCl.
PBr3's most important reaction is with alcohols, where it replaces an OH group with a bromine atom to form alkyl bromide.
The nucleophilic substitution reaction occurs when alcohol reacts with phosphorous tribromide, resulting in the formation of alkyl bromide.
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