Anomeric centre (alpha and beta) - Revision history

Harry Brumer: Uploaded arabinose figure under new filename to force new image loading

2014-11-07T18:19:56Z

Uploaded arabinose figure under new filename to force new image loading

Harry Brumer at 15:08, 8 October 2014

2014-10-08T15:08:32Z

Harry Brumer: updated citation keys to AuthorYear format

2013-07-17T15:47:12Z

updated citation keys to AuthorYear format

Harry Brumer: fixed broken ISBN

2013-06-04T15:31:26Z

fixed broken ISBN

Spencer Williams at 11:53, 30 April 2013

2013-04-30T11:53:26Z

Spencer Williams at 11:53, 30 April 2013

2013-04-30T11:53:09Z

Spencer Williams at 11:52, 30 April 2013

2013-04-30T11:52:47Z

Spencer Williams at 11:51, 30 April 2013

2013-04-30T11:51:30Z

Spencer Williams at 11:50, 30 April 2013

2013-04-30T11:50:50Z

Spencer Williams at 11:49, 30 April 2013

2013-04-30T11:49:02Z

@@ Line 8: / Line 8: @@
 The configuration at the anomeric centre (that derived from the carbonyl carbon) is denoted alpha- (&alpha;-) or beta- (&beta;-) by reference to the stereocentre that determines the absolute configuration. In a Fischer projection, if the substituent off the anomeric centre is on the same side as the oxygen of the configurational (D- or L-) carbon, then it is the &alpha;--anomer. If it is directed in the opposite direction it is the &beta;-anomer.
-[[File:alpha&beta_arabinose.png|center|700px]]
+[[File:Alphabeta arabinose.png|center|700px]]
 <center>'''Example 1. Fischer projections and Haworth conformational projections of L-arabinose.</center>
 <br>

@@ Line 8: / Line 8: @@
 The configuration at the anomeric centre (that derived from the carbonyl carbon) is denoted alpha- (&alpha;-) or beta- (&beta;-) by reference to the stereocentre that determines the absolute configuration. In a Fischer projection, if the substituent off the anomeric centre is on the same side as the oxygen of the configurational (D- or L-) carbon, then it is the &alpha;--anomer. If it is directed in the opposite direction it is the &beta;-anomer.
-[[Image:alpha&beta_arabinose.png|center|700px]]
+[[File:alpha&beta_arabinose.png|center|700px]]
 <center>'''Example 1. Fischer projections and Haworth conformational projections of L-arabinose.</center>
 <br>
-[[Image:alpha&beta_fructose.png|center|1000px]]
+[[File:alpha&beta_fructose.png|center|1000px]]
 <center>'''Example 2. Fischer projections and Haworth conformational projections of D-fructose.'''</center>
 In the case of D-hexopyranoses drawn in the 'usual' Haworth projection, the &alpha;-D-anomer is the isomer with the anomeric substituent on the opposite face to the C5 (hydroxymethyl) substitutent, ie directed ‘down’; the &beta;-D-anomer is that with the anomeric substituent being on the same face as the C5 hydroxymethyl substitutent, ie directed up. For L-hexoses the &alpha;-L-anomer has the anomeric group pointing up; the &beta;-L-anomer has this group pointing down.
-[[Image:alpha&beta_glucose.png|center|700px]]
+[[File:alpha&beta_glucose.png|center|700px]]
 <center>'''Example 3. Fischer projections and Haworth conformational projections of D-glucose.'''</center>

@@ Line 22: / Line 22: @@
 ==References==
 <biblio>
-#StickWilliams isbn=9780240521183
+#StickWilliams2009 isbn=9780240521183
 </biblio>
 [[Category:Definitions and explanations]]

@@ Line 22: / Line 22: @@
 ==References==
 <biblio>
-#StickWilliams isbn=978-0-240-52118-3
+#StickWilliams isbn=9780240521183
 </biblio>
 [[Category:Definitions and explanations]]

@@ Line 8: / Line 8: @@
 The configuration at the anomeric centre (that derived from the carbonyl carbon) is denoted alpha- (&alpha;-) or beta- (&beta;-) by reference to the stereocentre that determines the absolute configuration. In a Fischer projection, if the substituent off the anomeric centre is on the same side as the oxygen of the configurational (D- or L-) carbon, then it is the &alpha;--anomer. If it is directed in the opposite direction it is the &beta;-anomer.
-[[Image:alpha&beta_arabinose.png|center|750px]]
+[[Image:alpha&beta_arabinose.png|center|700px]]
 <center>'''Example 1. Fischer projections and Haworth conformational projections of L-arabinose.</center>
 <br>
@@ Line 17: / Line 17: @@
 In the case of D-hexopyranoses drawn in the 'usual' Haworth projection, the &alpha;-D-anomer is the isomer with the anomeric substituent on the opposite face to the C5 (hydroxymethyl) substitutent, ie directed ‘down’; the &beta;-D-anomer is that with the anomeric substituent being on the same face as the C5 hydroxymethyl substitutent, ie directed up. For L-hexoses the &alpha;-L-anomer has the anomeric group pointing up; the &beta;-L-anomer has this group pointing down.
-[[Image:alpha&beta_glucose.png|center|750px]]
+[[Image:alpha&beta_glucose.png|center|700px]]
 <center>'''Example 3. Fischer projections and Haworth conformational projections of D-glucose.'''</center>

@@ Line 8: / Line 8: @@
 The configuration at the anomeric centre (that derived from the carbonyl carbon) is denoted alpha- (&alpha;-) or beta- (&beta;-) by reference to the stereocentre that determines the absolute configuration. In a Fischer projection, if the substituent off the anomeric centre is on the same side as the oxygen of the configurational (D- or L-) carbon, then it is the &alpha;--anomer. If it is directed in the opposite direction it is the &beta;-anomer.
-[[Image:alpha&beta_arabinose.png|center|900px|'''Example 1. Fischer projections and Haworth conformational projections of L-arabinose.]]
+[[Image:alpha&beta_arabinose.png|center|900px]]
-[[Image:alpha&beta_fructose.png|center|900px|'''Example 2. Fischer projections and Haworth conformational projections of D-fructose.''']]
+[[Image:alpha&beta_fructose.png|center|900px]]
 In the case of D-hexopyranoses drawn in the 'usual' Haworth projection, the &alpha;-D-anomer is the isomer with the anomeric substituent on the opposite face to the C5 (hydroxymethyl) substitutent, ie directed ‘down’; the &beta;-D-anomer is that with the anomeric substituent being on the same face as the C5 hydroxymethyl substitutent, ie directed up. For L-hexoses the &alpha;-L-anomer has the anomeric group pointing up; the &beta;-L-anomer has this group pointing down.
-[[Image:alpha&beta_glucose.png|center|900px|'''Example 3. Fischer projections and Haworth conformational projections of D-glucose.''']]
+[[Image:alpha&beta_glucose.png|center|900px]]
 ==References==