Question

these are confusing me. help please?

Homework #6 Due Monday November 18th, 2019 Problem I: Diels-Alder Reaction Below is shown the Diels Alder reaction. Predict the sign of H and the sign of S. Then indicate when the reaction would work. C + = Problem II: Enolate formation We look at the reaction below which is the formation of an enolate. Base, + O Reaction Coordinate Which product is the kinetic product? Which product is the thermodynamic product? The reaction is typically run under two possible conditions: 1) NaH, 25°C or 2) LDA, -78°C (LDA is an amide base). Which condition would you use to make A?

Answer 1

2011- Denc = 347 kJ /mol Deac = 614 kg/rol TWhen = ID reclub - I Dondelke - 3Dc=c+ Dere - Desc -5 De-c 2bc=c-4De-C = (2x614 – AX 377) 187/fome - - 160 kJ/mol sign of ha torre As from 2 products to li produf farmetin heppen so 453-ve so, the rection will ♡ kinetic forcluct: flestygnanie podud wang at higher temperchin. Š (less energy tren to generale ) (moke ! ) O A) [raw, sc ^> 10. +352] - At high tempertu komodynamic poudret will form.

Lewis-acid - base addel. 1 Bron s 'fe Br Bn Br - Brit Bn Lewis-aud-base addhela lewd-base Lewis-auda Br on EN & o 1 in electrophilic . addition Br t Burr-Bn ņa Bn and" Elimination ET