Mini Bio (1) Ginger Zee was born on January 13, 1981 in Orange, California, USA as Ginger Renee Zuidgeest. She is a writer, known for Good Morning America (1975), Good Morning America Weekend Edition (1993) and Dancing with the Stars (2005). She has been married to Ben Aaron since June 7, 2014.
There is disclosed a process for the isomerization of a branched diene which comprises passing the branched diene in the vapor phase over a boron phosphate catalyst, the improvement comprising a catalyst which has an initial molar ratio of P/B of less than 1.0 but more than 0.6.
compounds. viii 1. The Diels-Alder reaction is a member of a class of reactions called cycloadditions. In all Diels-Alder reactions, three Ï bonds, two in a diene and one in a dienophile, reorganize to give a six-membered ring containing one Ï bond and two new sigma bonds. All of the bonds move at once, in a concerted manner, not stepwise. Other examples of concerted reactions include S N 2 and E 2 reactions.