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What is the pyranose and furanose formula for aldohexose?
pyranose is a collective noun of carbohydrates that have a six membered ring system which is 5 carbons and one oxygen. example: glucose Furanose is a collective noun of carbohydrates that have a five membered ring system which is 4 carbons and one oxygen. example: fructose
What is a heterocylic amine?
Pyrrole is a 5 membered ring heterocylic amine , the fused heterocylic form of it is Indole (Benzo [b] Pyrrole)
Why do 5-membered ring aromatic heterocycles pyrrole and furan undergo electrophilic substitution more rapidly than benzene while 6-membered ring heterocycles like pyridine are less reactive than Benz?
pyridine is less reactive than benzene because when we form its conjugate base then it'll b more stable than dat of benzene.. so more stabler means less reactive.......and also due to more resonance in benzene it will b more reactive...same 4 furan and pyrrole
What is the shape of the sugar deoxyribose?
It is a 5-carbon sugar. On the 2' carbon, there is only an H-, compared to the -OH found in ribose (hence the name, deoxyribose). -OH groups are found on the 1', 3', and 5' carbons. An oxygen bonds between the 4' and 1' carbons, forming a 5-membered ring.
Explain the differences and similarities of pyranose and furanose ring?
1.when the cyclic sturcture of glucose(hexose) is six-membered ring resembling the pyran ring, thus they are called pyranosewhile when hexoses are found in five-membered ring resembling furan ring, thus they are called furanose2.in aldohexose:The interaction between c=o and the secondary OH is found at c5 if it was pyranosethe interaction between c=o and the secondary OH is found at c4 if it was furanosein ketohexose:the interaction between c=o and the secondary OH is found at c6 if it was pyranosethe interaction between c=o and the secondary OH is found at c5 if it was furanose
What element form basic of all organic compound?
By chemical reactions they form other compounds.
How many cycloalkane isomers with ring size of four and five can be draw including cis-trans for molecular formula c6h12?
There are six different cycloalkane isomer possibilities for C5H10 1) cyclopentane 2) methylcyclobutane 3) 1,1-dimethylcyclopropane 4) cis-1,2-dimethylcyclopropane 5) trans-1,2-dimethylcyclopropane 6) ethylcyclopopane *Note that #4 and #5 are cis/trans isomers of each other. They are not structural isomers, because they have their methyl groups connected on the same carbon atoms on the cyclopropane (they are just connected in different ways).
What is meant by azo- and thio- in chemistry?
These are prefixes given to heterocyclic compounds that contain nitrogen (azo-) and sulphur (thio-). Suffixes can also be given which reffer to the number of atoms that make up the heterocyclic ring these being -ine (6 membered), -ole (5 membered). Thus a 5 membered ring containing both sulphur and nitrogen would be classed as a thiazole. heterocycle-a ring structure which contains one or more atoms that are not carbon e.g pyridine (the most common atoms that replace the carbon are nitrogen, sulphur and oxygen)
What is the characteristics of sugar?
It is a 5-carbon sugar. On the 2' carbon, there is only an H-, compared to the -OH found in ribose (hence the name, deoxyribose). -OH groups are found on the 1', 3', and 5' carbons. An oxygen bonds between the 4' and 1' carbons, forming a 5-membered ring.
Why 5 member lactones are most stable?
Five-membered lactones are typically more stable due to their ability to adopt a favorable chair conformation that minimizes steric strain and maximizes angle strain. This conformation allows for effective overlap of orbitals, contributing to ring stability. Additionally, the smaller ring size reduces torsional strain compared to larger lactones, making them energetically favorable. The combination of these factors results in a lower energy state for five-membered lactones, enhancing their stability.
How do you name cycloalkane?
Cycloalkanes are named by indicating the number of carbons in the ring with the prefix "cyclo" followed by the total number of carbons in the molecule. For example, a cycloalkane with six carbons in the ring would be named cyclohexane.
How many carbon atoms does triose have?
There are 5 carbons in sugars. Sugars can form five membered rings or six membered rings.
