Compound w , c6h13cl, undergoes base-promoted e2 elimination to give a single c6h12 alkene, y. compound x, c6h13br, undergoes a similar reaction to form y and an isomeric alkene z. w is chiral; x is not. catalytic hydrogenation of y and z produces 2-methylpentane. propose structures for w and x.

compound w, c8h17br, and x, c8h17cl, are products of the radical bromination (w), and chlorination (x), of 2,4-dimethylhexane. w and x are each chiral. w reacts readily in water to form a chiral substitution product y, c8h17oh. reaction of a single enantiomer of w produces a single enantiomer of y as the only substitution product. x likewise reacts readily in water though at a slower rate than w; a chiral substitution product z, c8h17oh, is again formed. unlike w, however, reaction of a single enantiomer of x produces z that is nearly racemic. propose structures for w and x.

compound a has the formula c9h19cl. b is a c9h19br compound. a and b undergo base-promoted e2 elimination to give the same alkene c as the major product as well as different minor products. c reacts with one molar equivalent of hydrogen in the presence of a palladium catalyst to form 2,6-dimethylheptane. addition of hcl to c yields a as the major product. propose structures for a and b.

How many atoms are there in 5.70 mol of mg

Straightforward questions answered in the powerpoint slidesreaction: heating the starting materials under refluxwhat does it mean to heat under reflux? why do we choose water as the reflux solvent? what are boiling chips used for? why do we put a condenser on top of the reaction? why do we add heat and let the reaction stir for 30 minutes? why do we add sulfuric acid to the reaction after it cools as opposed to when it’s still hot? separation: filtration of precipitatewhy don’t we do an aqueous and organic extraction in the separatory funnel? why do you rinse the salicylic acid on the filter with ice cold water? purification: recrystallization of salicylic acid (no hot filtration needed)what is the difference in the amount of room temperature water vs. boiling water needed to dissolve the salicylic acid (assume a 1.2 gram yield of salicylic acid)? remember, in the lab if you need x ml of boiling water to dissolve a solid, then you should add a little more (definitely no more than 1.5 times the theoretical amount) to ensure it doesn’t recrystallize prematurely. analysis: melting point of salicylic acidwhat can you conclude if the melting point of the salicylic acid you just synthesized is 152-155oc and the 1: 1 mix of your product and “synthetic” salicylic acid is 151-154oc?

George is a dalmatian puppy. describe what happens to light that allows you to see george’s black and white coat.