Exams & Certification

Exams & Certification

THE DIELS-ALDER REACTION

Stereoselective THE DIELS-ALDER REACTION: Synthesis of cis-4-Cyclohexene-1,2-dicarboxylic Anhydride SO2 The Correct Answer and Explanation is: Correct Answer The reaction illustrates a two-step synthesis of cis-4-cyclohexene-1,2-dicarboxylic anhydride. The first step involves the thermal decomposition of 3-sulfolene in a retro-cheletropic reaction to generate 1,3-butadiene and sulfur dioxide gas. In the second step, the in situ generated 1,3-butadiene

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REPORT FORM: STEREOSELECTIVE SYNTHESIS OF cis-4-CYCLOHEXENE-1,2-DICARBOXYLIC ANHYDRIDE

REPORT FORM: STEREOSELECTIVE SYNTHESIS OF cis-4-CYCLOHEXENE-1,2-DICARBOXYLIC ANHYDRIDE Balanced Equation(s) for Main Reaction(s): Balanced Equation(s) for Important Side Reaction(s): Compound MW mg or mL mmol 3-sulfolene 116.15 850 111 maleic anhydride 98.06 450 45 Diels-Alder adduct 151.25 Indicate the limiting reagent with an asterisk Product Observed melting-point range: 41-41.5°C Literature melting-point range: 101-110°C Molecular weight of

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A recent innovation by the Empire added weather observation sensors to their small AT-ST walkers (now called AT-MTs for All Terrain Meteorological Transports).

A recent innovation by the Empire added weather observation sensors to their small AT-ST walkers (now called AT-MTs for All Terrain Meteorological Transports). In particular, the walkers, which are roughlytall, can measure temperature (in), pressure (in mb), and a velocity vector (in). Each of the 3 walkers made atmospheric measurements that were oriented as depicted

A recent innovation by the Empire added weather observation sensors to their small AT-ST walkers (now called AT-MTs for All Terrain Meteorological Transports). Read More »

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