CHO Co₂Et Na-co DEU DBU is an amine-like base: please abbreviate NR- CHO >> 20:1 dr CO₂Et > 20:1 ** HE CHO 9 > 20:1 dr > 20:1 CO₂Et

Chemistry
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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Under basic conditions, the following substrates can undergo a [4+2] cycloaddition with regio- and
diastereo- control. Rationalize mechanistically how the reaction occurs as well as the regio- and stereochemical outcome with each base. 

0=
CHO
co₂Et
Na-co
DEU
DBU is an amine-like base;
please abbreviate NR-
0=
OH
CHO
> 20:1 dr
CO₂Et > 20:1
CH
CHO
CO₂Et
20:1'dr
20:1
Transcribed Image Text:0= CHO co₂Et Na-co DEU DBU is an amine-like base; please abbreviate NR- 0= OH CHO > 20:1 dr CO₂Et > 20:1 CH CHO CO₂Et 20:1'dr 20:1
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