Reaction (a) 2 NaOEt, EtOH A Draw the product of reaction (a). Select Draw Templates More Erase Reaction (b). 2 H NaOEt, EtOH A G Draw the product of reaction (b). Select Draw Templates / " C H More Erase Q2 2Q

Plastic photochromic sunglasses are based on the following reversible rearrangement of a dye inside the lenses that occurs when the lenses are exposed to sunlight. The original dye absorbs UV light but not visible light and is thus colorless, while the rearrangement product absorbs visible light and is thus darkened. (a) Show the mechanism of the rearrangement. (b) Why does the rearrangement product absorb at a longer wavelength (visible light) than the original dye (UV)?

Draw the mechanism.

dont need explanation, answer is fine

Show Transcribed Text H₂, Pd/C, EtOH MeMgBr (excès) puis H3O+ Me₂CuLi, Et₂O puis H₂O+ Please draw the mechanism step by step ? ? ?

can you create an original syntheic scheme to the given target and write a paragraph that descibe the reagents/solvents being used and the name of the mechanism/reaction perfomed (should be like a scientific journal article)

Draw the complete, detailed mechanism (curved arrows) for the reaction between alanine and DCC and the mechanism between the activated alanine and serine to form the Ala-Ser dipeptide and the stable urea (a functional group that looks like a carbonyl in two amides... more stable than an amide!) products. N=C=N OH Ο ΗΝ (DCC) H₂N H₂N. OH H₂N. OH OH N N CH3 OH CH3 serine Ala-Ser (excess) H₂N. CH3 alanine urea

Predict the product for the reaction between m-ethylbenzoyl chloride (see Problem 20.35) and each of the following. Draw the complete, detailed mechanism for each reaction. If no reaction is expected to occur, write “no reaction." (a) (CH3CH2)2CuLi; (b) LİAIH(O-t-Bu)3, – 78 °C; (c) NaBH4, EtOH; (d) C6H5MgBr (excess), then H*

Help asap! Be detailed pls

Give detailed mechanism Solution with explanation needed..don't give Handwritten answer