1 The Diels-Alder reaction is a conjugate addition reaction of a conjugated diene to an alkene (the dienophile) to produce a cyclohexene. 2  The simplest example is the reaction of 1,3-butadiene with ethene to form cyclohexene:3  The analogous reaction of 1,3-butadiene with ethyne to form 1,4-cyclohexadiene is also known: Due to the high degree of regio-and stereoselectivity (due to the concerted mechanism), the Diels-Alder reaction is a very powerful reaction and is widely used in synthetic organic chemistry.
Best Answer: Buyers have up 7 days to pay for an item before you as a seller can open an unpaid item case with ebay. They have a whole process they ask that sellers follow: Buyers automatically enter into a legally binding contract to purchase the item from the seller if they win an online auction or use the Buy It Now feature.
You can find the final value fees for ebay stores HERE, and for sellers without stores HERE, about halfway down the page for each link to see the breakdown. 1. You are exceeding $1,995 per month in sales. The reason for this is when you open an eBay store, you receive a 10% discount on eBay final value fees. Without a store, typically you will pay 10% final value fees on all sales to eBay assuming you are not a top rated seller. With a store the final value fees drop to 9% of sales. The cheapest store option is $19.95 per month, and the instant you are selling more than $1,995 in a month on eBay, having a store saves you money in final value fees.