Ochem day 6 Flashcards
electron withdrawing groups decreases basicity…
amines
Amines
electron donating groups increase basisty/nucleophilicity
amide formation
2 eq RNH2
Amide formation w nitrous acid
HCL, NaNO2 Odegrees
Alkylatioin
SN2 CH3Br…. adds Ch3’s too the NH3 group
Hofmann elimination
XS CH3I, Ag2O and H2O…. adds CH3 to N that has ethyl on each side
monosaccharides
glucose, fructose, galactose
oligosaccharides
sucrose (glucose and fructose) and lactose (glucose and galactose) are disacharides
polysaccharides
starch, glycogen, cellulose, chitin
Dvs L sugars
D- OH on Right…. L OH on Left…..
aldose vs ketose
aldose double bond on end…. ketose double bond in middle..
pentose vs hexose
5 vs 6 member ring
furanose vs pyranose
furanose, is 5 with O… Pyranose is 6 with O
acetal vs hemi acetals
Acety.. has OR and OR group… Hemi has OR and OH group
anomeric carbon
a sterocenter can point up or down…alpha down… beta up