I took Organic Chemistry and really struggled and made a C. My school allows me to retake a class and I am planning on retaking that one. I have a time conflict with Organic Chem 1 this semester so I think I will take Organic Chemistry 2 and later retake Organic 1. But my question is, do you really need a strong background in Organic 1 to do well in 2? Or are the topics pretty different?