Donor-Acceptor Cyclopropanes in Organic Synthesis Quiz
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Questions and Answers

What is the reaction pathway involved in the enantioselective synthesis of dihydrothiopyran derivatives?

Thia-Michael aldol condensation and annulation

What type of intermediates are donor-acceptor cyclopropanes (DACs) in organic chemistry?

Versatile, highly reactive intermediates

What type of resolution is typically involved in the transformation described in the text?

Kinetic resolution (KR)

What are the characteristics of the method described in the text for synthesizing dihydrothiopyran derivatives?

<p>One-pot simplicity, mild reaction conditions, resilience towards air and moisture interference</p> Signup and view all the answers

What are some examples of sulfur-containing heterocycles mentioned in the text?

<p>Thiazole, thiophene, thiopyran</p> Signup and view all the answers

In which biological compounds are six-membered sulfur-heterocyclic moieties, specifically dihydrothiopyrans, present?

<p>Various biological compounds, promising pharmaceutical drugs (antiviral, antipsoriatic, antiatherosclerosis)</p> Signup and view all the answers

What has been a convenient avenue for achieving an asymmetric synthesis of sulfur heterocycles in recent years?

<p>Utilization of organocatalytic methodologies</p> Signup and view all the answers

What is the main focus of the text regarding organocatalytic synthesis?

<p>Asymmetric synthesis of dihydrothiopyran derivatives</p> Signup and view all the answers

How is the reaction involving trans racemic donor–acceptor cyclopropane carbaldehydes and 2-mercapto-1arylethanone classified?

<p>Formal thio (4 + 2) cycloaddition</p> Signup and view all the answers

What role do Diarylprolinol Silyl Ethers play in the synthesis described in the text?

<p>Organocatalysts</p> Signup and view all the answers

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