Thanks in anticipation. For instance if the amide is connected to cyclohexane. How do you find the parent chain for a molecule that has multiple double and triple bonds along with a functional group? I assume you find the longest chain that contains the functional group but also contains as many of those multiple bonds as possible? Is this correct? Regarding carboxamide- As always, we look for the longest chain that contains the functional group, but in this case the longest chain that contains the functional group of amide is the single carbonyl carbon of the amide?
That is why we call it carboxamide? This question refers to compounds with multiple functional groups-When a functional group is lower priority and is named as a substituent, do we consider the carbon if the functional group has a carbon a part of the longest chain of the branched substituent?
The way I have leaned to treat branched non main chain substituents is to treat the first carbon coming off the main branch as the number one carbon and then count the longest continuous carbon chain to make the alkyl, alkenyl, or alkynl substituent the main name. Then what ever other branches exist off that main chain you give a locant,a name, and then arrange them alphabetically.
So what gives? When do you use oxo or formyl when naming aldehydes. It seems different sources say different things. What I have seen that makes the most sense is to use formyl when the aldehyde is not part of main parent chain and use oxo when it is.
Your email address will not be published. Save my name, email, and website in this browser for the next time I comment. Notify me via e-mail if anyone answers my comment. This site uses Akismet to reduce spam. Learn how your comment data is processed. Previous Organic Chemistry Nomenclature Quizzes.
What do you do? What suffix do you give the molecule? Alkenes vs. Some Examples With Multiple Functional Groups Here are some examples of applying the order of functional group priorities to solve nomenclature problems.
Polar Aprotic? Are Acids! What Holds The Nucleus Together? Alkenes and alkynes are numbered so as to give the lowest set of locants.
If Halogens have higher perioity than Nitro why the Nitro group is written after the Bromine. Leigh Page If double and triple bonds are present in a structure, they are considered together when assigning lowest locants. Examples Halogens come down at the rock botoom. They are not used as suffixes. Only Prefixes. Hey, in the 2nd example why do they use both the siffix and the prefix of nitromethane? If multi functional groups are there in a compound, for which 1 we should give priority?
Please give me a answer. Where do epoxides fit into this list? Are they considered a substituant or a functional group? Can you please provide an example where ester is not the primary functional group and name it? In this priority table,Sulphonic Group Functional Group is not present. James, again, thanks SO much for making OChem. Happy New Year :. The R-group the organic substituent, e. Anhydride is missing please tell about that… And also thanls a lot.
Did you read the part at the bottom? A mechanic's lien sometimes gets priority over other types of previously recorded liens. The priority of liens establishes who gets paid first following a foreclosure and often determines whether or not a lienholder will get paid at all. A first lien has a higher priority than other liens and gets first crack at the sale proceeds. If any sale proceeds are left after the first lien is paid in full, the excess proceeds go to the second lien—like a second-mortgage lender or judgment creditor—until that lien is paid off, and so on.
A lien with a low priority might get nothing from a foreclosure sale. The creditor recorded the judgment lien after the second mortgage was recorded. You fall behind in mortgage payments and the first-mortgage holder forecloses. The judgment creditor gets nothing, and its lien is eliminated in the foreclosure. Also, while the credit card company won't get any money from the foreclosure, it could still try to collect the judgment debt from you in other ways, like by freezing your bank accounts, garnishing your wages , or placing liens on other property you own.
If you're facing a foreclosure and have questions about what happens to the liens that are on your home, consider talking to a local attorney. The information provided on this site is not legal advice, does not constitute a lawyer referral service, and no attorney-client or confidential relationship is or will be formed by use of the site. The attorney listings on this site are paid attorney advertising. In some states, the information on this website may be considered a lawyer referral service.
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Meet the Editors. What Is Lien Priority? First Mortgages If you take out a loan to buy a home, you'll likely sign two documents: a promissory note and a mortgage or a deed of trust in some states. Second and Third Mortgages Sometimes, a borrower needs two mortgage loans to buy a home. Mechanic's Liens A mechanic's lien is recorded in the county recorder's office by an unpaid contractor, subcontractor, laborer, or material provider.
Priority Determines How Foreclosure Funds Are Distributed The priority of liens establishes who gets paid first following a foreclosure and often determines whether or not a lienholder will get paid at all. Talk to a Lawyer If you're facing a foreclosure and have questions about what happens to the liens that are on your home, consider talking to a local attorney.
Talk to a Lawyer Start here to find foreclosure lawyers near you. Ask your colleagues and peers, the people that ought to work with the "priority" about their requirements for the ordering. From a collaborative perspective most important should be to agree on a common understanding communication. Once committed everyone can get used to it and may probably redefine its intuition. Totally independent from intuitive or meritocratically defined value-system, every ordering be it ascending or descending should be explained and documented when it appears be it in source-code or on the user-interface, within project docs or the manual.
If we look beyond the world of programming, processor priority etc. The phrase 'number one priority' is so ingrained that everybody knows what it means. That would clearly indicate that your option. You can still decide to go the other way around, like Apple did with iOS layout constraints. Apparently, that never confused me before, probably because they provide clear indicators of what is high and low priority:. Sign up to join this community. The best answers are voted up and rise to the top.
Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn more. Priority value meaning Ask Question. Asked 10 years, 5 months ago. Active 11 months ago. Viewed 5k times. Lowest number has highest priority 1 - highest priority, 10 - lowest priority 2.
Improve this question. Max Max 1 1 silver badge 8 8 bronze badges. For lots of fun you might consider using the negatives with 0 being 'average' priority.
I think that for any task 3 priorities are enough. But to be on a safe side I'll make it Add a comment. Active Oldest Votes. This is a long standing convention. Most processor priority level registers work the same way. Improve this answer.
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