From owner-chemistry@ccl.net Fri Nov 13 08:19:01 2015 From: "Saied Mohammed Soliman saied11soliman]^[gmail.com" To: CCL Subject: CCL: Transition state location Message-Id: <-51877-151113081750-14840-ukOrfE634pdDSZJFcmoRgg%server.ccl.net> X-Original-From: "Saied Mohammed Soliman" Date: Fri, 13 Nov 2015 08:17:48 -0500 Sent to CCL by: "Saied Mohammed Soliman" [saied11soliman%x%gmail.com] Yes, actually the reaction is decarboxylative condensation of A and B which produces an intermediate. This intermediate will undergo cycloaddition reaction to give the final product. It is a complicated system. So what I should do is to study the first reactions using QST2 without ignoring the CO2 and H2O produced. This will give the transition state of the first reaaction. Then, do again QST2 between the intermediate formed in the first reaction with the diene as third reactant. Am I right? All the best Saied