![organic chemistry - Ring closure via intramolecular nucleophilic substitution or intermolecular dimerization: which is favoured? - Chemistry Stack Exchange organic chemistry - Ring closure via intramolecular nucleophilic substitution or intermolecular dimerization: which is favoured? - Chemistry Stack Exchange](https://i.stack.imgur.com/8zD4M.png)
organic chemistry - Ring closure via intramolecular nucleophilic substitution or intermolecular dimerization: which is favoured? - Chemistry Stack Exchange
![FeCl3‐Catalyzed Ring‐Closing Carbonyl–Olefin Metathesis - Ma - 2016 - Angewandte Chemie International Edition - Wiley Online Library FeCl3‐Catalyzed Ring‐Closing Carbonyl–Olefin Metathesis - Ma - 2016 - Angewandte Chemie International Edition - Wiley Online Library](https://onlinelibrary.wiley.com/cms/asset/97ec0f62-62e7-4148-80bd-355f8473e3f2/anie201604349-toc-0001-m.png)
FeCl3‐Catalyzed Ring‐Closing Carbonyl–Olefin Metathesis - Ma - 2016 - Angewandte Chemie International Edition - Wiley Online Library
![Please explain how this ring closure works - why aren't the "OH" in the closed ring up and down? : r/Mcat Please explain how this ring closure works - why aren't the "OH" in the closed ring up and down? : r/Mcat](https://i.redd.it/s4qbvjax3ozy.png)
Please explain how this ring closure works - why aren't the "OH" in the closed ring up and down? : r/Mcat
![Consider the following electrocyclic ring closure. Does the product form by a conrotatory or disrotatory process? Would this reaction occur under photochemical or thermal conditions? | Homework.Study.com Consider the following electrocyclic ring closure. Does the product form by a conrotatory or disrotatory process? Would this reaction occur under photochemical or thermal conditions? | Homework.Study.com](https://homework.study.com/cimages/multimages/16/6760294_13414791939052111952.png)
Consider the following electrocyclic ring closure. Does the product form by a conrotatory or disrotatory process? Would this reaction occur under photochemical or thermal conditions? | Homework.Study.com
![Michael–Michael Ring-Closure Reactions for a Dihapto-Coordinated Naphthalene Complex of Molybdenum | Organometallics Michael–Michael Ring-Closure Reactions for a Dihapto-Coordinated Naphthalene Complex of Molybdenum | Organometallics](https://pubs.acs.org/cms/10.1021/acs.organomet.0c00110/asset/images/medium/om0c00110_0007.gif)