Question

ASAP

6.(8) a. The 1,2 addition product of the reaction is shown. Draw the 1,4 addition product. HBr 1,2 1,4 b. Which is more stable? Circle one: the 1,2 product, the 1.4 product. c. Which product is favored at low temperatures? Circle one: the 1.2 product, the 14 product d. "The proximity effect is used to account for the formation of which product? Circle one: the 1,2 product, the 1.4 product. 7. (5) The pesticide chlordane, sold starting in 1948, was banned in 1988 because it was recognized as being human carcinogen. The synthesis of chlordane starts with a Diels-Alder reaction: CI CI CI heat CI at Chlordane precursor Drawn in 3D, the chlordane precursor is one of the three molecules below (A, B, or Cl. a. In Diels-Alder reactions, stereochemistry is retained (if the dieneophile iscis, it remains is in the product, etc.) Based on this rule, which one of the molecules cannot be the product? Circle one: ABC b. In Diels-Alder reactions that form bicyclic products (like chlordane), the dieneophile addsende. Based on this rule, of the remaining two products (you ruled one out above), which is the product? Cedene ABC CICI CICI CICL H Cl, CI H crc EXTRA CREDIT (2PTS): c.Chlordane is made by reacting the chlordane precursor with Clz CICI C Chci CH Chlordane precursor Chlordane The question continues on the next page