![]() ![]() In the next few posts, this is how we’re going to think about organic synthesis. Similarly, some functional groups, like alkanes, will have few connecting reactions, while others – like alkyl halides – will have many. Some cities, like Bozeman, will have few connecting cities others, like Denver, will be veritable hubs. To continue the travel metaphor, it can be helpful to think of functional groups as cities on a map, and reactions as “flights” that connect those cities. Then, treat ethyl chloride with NaSH to give ethane thiol. First, treat ethane with Cl 2 and light to give ethyl chloride. So long as we are aware of these two reactions, the solution is simple. In the series on substitution, we also saw that alkyl halides can be converted into alcohols, ethers, nitriles, and many other functional groups (including thiols) through substitution reactions. We learned that alkanes can be transformed into alkyl chlorides (a type of alkyl halide) through treatment with chlorine gas and light (or heat). If a direct route cannot be found, we have to start looking for a way to achieve the same transformation in two or more steps. Look For Ways In Which Functional Groups Can Be Interconverted In Two Or More Steps So what do you do?įind a connecting flight! As it turns out you can fly from Bozeman to Denver, and from Denver you can then connect to Charlotte. The problem is, there aren’t any flights that go directly to Charlotte. Imagine you’re in Bozeman, Montana and want to get to Charlotte, North Carolina. ![]() We don’t know how to do this directly: there aren’t any reactions we’ve learned so far that will give ethanethiol from ethane in one step. So how might we do this? Thx, USAIR Say we’d like to take ethane and convert it into ethane thiol. ![]() What Do You Do When A Synthetic Transformation Can’t Be Done In One Step?
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