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H2SO4 (catalytic) heat 2 + OH attack ortho to OH & para to X xanthene type...
EvEvv All I AaBbccdee AaBbCcDdfe Aa BbCcDc AaBbCcDdE Aa BbCcDc irau MIII Normal No Spacing Heading...
EvEvv All I AaBbccdee AaBbCcDdfe Aa BbCcDc AaBbCcDdE Aa BbCcDc irau MIII Normal No Spacing Heading 1 Heading 2 Title H2SO4 (catalytic) heat 2 + OH attack ortho to OH & para to X xanthene type dye: X = OH (fluorescein) X = N(CH2CH3)2 (rhodamine B) This reaction involves two subsequent Friedel-Crafts acylation reactions. What is the structure of the intermediate after the first Friedel-Crafts reaction? (6 pts.) 1
please help! the final products woukd bw fluorescein for one and rhodamine for the other (2...
please help!
the final products woukd bw fluorescein for one and rhodamine
for the other (2 different outcome but still the same method)
B: 7) Mechanistically show how the following compound can be converted to the final product. (8 pts.) (Hint: It is related to one of your previous experiments this semester.) OH COOH X = OH or NET ators. They are often fluorescent and have been used corneal abrasions, as antibacterials and anticancer by a Friedel-Crafts acylation reaction. Friedel-Crafts...
Question 1 (10 pts). When N,N-dimethylaniline is treated with bromine, ortho and para products are formed....
Question 1 (10 pts). When N,N-dimethylaniline is treated with bromine, ortho and para products are formed. Note that this ring is so activated that a Lewis acid catalyst is not needed. Yet, when this material is treated with nitric/sulfuric acids, only the meta product is formed indicative of a very deactivated ring). Explain these curious results. z Br2 Br HNO, H2SO4 NO
I understand that OH is a EDG so I expect a para/ ortho position but how...
I
understand that OH is a EDG so I expect a para/ ortho position but
how doni determine the major product and which sode of the ring it
will be on
Which of the following is the major product of the nitration reaction of compound 1 below? ÇO-OH HNO3 /H2SO4 ????? CO-OH СО-он со-он CO-OH NO2 ON CO-OH CO-OH ON CO-OH II (b) III (c) IV (e) III & IV (d) II & III If thiophene below reacts like benzene,...
2. D type and strength of each substituents as activating(A) or outcome as ortho-para (O/P) or...
2. D type and strength of each substituents as activating(A) or outcome as ortho-para (O/P) or meta(M) directors. (6 pts) you expect an electrophile to be attached to the ring You must identify the deactivating(D) and also the expected regiochemical 3. Use aromatic, non aromatic or antiaromatic concepts to explain the reactions or molecules shown (6 pts) Provide a curved arrow mechanism to show the formation of a aromatic carbocation intermediate Show the final product H-I The pK,values for the...
Reaction 1: Nitration HNO3 NO2 H2SO4, H20 NO2 toluene NO2 ortho meta para Procedure for Reaction...
Reaction 1: Nitration HNO3 NO2 H2SO4, H20 NO2 toluene NO2 ortho meta para Procedure for Reaction 1: 1) To a stirred solution of 3 mL (44.7 mmoles) 67 % HNO3 in 3.75 mL of water, H2SO4 (9 mL) was slowly added at 10-15 °C. 2) This nitrating solution was added dropwise with vigorous stirring to 4 mL (37.5 mmoles) of toluene while cooling in ice-water in order to maintain the reaction temperature between 15 and 25 °C. 3) Stirring was...
Consider the following substitution reaction: OH H2SO4 CHBОН + - Нао 1. (1 point) What type...
Consider the following substitution reaction: OH H2SO4 CHBОН + - Нао 1. (1 point) What type of substitution reaction is this? Answer: SN1 2. (2 points) Assume that you are performing the above reaction in the lab. You are using 5 g of tert-butanol (FW: 74.123), 20 mL of concentrated sulfuric acid (FW: 98.079, d-1.84 g/mL), and 200 mL of methanol (FW: 32.04, d 0.792 g/mL). You obtained 5 mL of methyl tert-butyl ether (FW: 88.150, d 0.7404 g/mL). Determine...
catalytic H2SO4 но Он С НО A B ОН он с D ОА ОС OD Predict...
catalytic H2SO4 но Он С НО A B ОН он с D ОА ОС OD Predict the product from the following reaction HS SH ZnCl2 BO OH O Provide the major product for the following reaction sequence. 1. NHANH4H 2. KOHIHOIA AICI ad dan III H2NN TV OM OM O IV What would be the expected product of the following reaction sequence? N-H 12 HO OH Predict the major organic product of the following reaction sequence. 1) (Ph)3P Br ?...
2. Study the third step (below) and answer the questions that follow. HO НО, ...OH X...
2. Study the third step (below) and answer the questions that follow. HO НО, ...OH X H,SO. (cat) ""он. H20 80% 2.1 What type of reaction is taking place in this step? Explain 2.2 What is the name of the functional group that is being transformed? 2.4 Under the reaction conditions described, it is mechanistically possible that the reaction below can take place, using the same principles of your previous answer in 2.3. However, this does not seem to be...
product the product for the following reaction carboxylic acid + h2so4 heat B. NBS NaoMe МОН...
product the product for the following reaction carboxylic acid
+ h2so4 heat
B. NBS NaoMe МОН 0°C tBuCOtBu CO E A. NBS - N-bromosuccinimide Ph OTBS 90°C "CO,CH C. 1. MgBr (CHOTMS 1. DIBAL-H 2. H0 2. H,0 H.CÓ E. DIBAL-H - diisobutylaluminum hydride TMS-trimethylsilyi (alcohol protecting group) D. G. OCH 1. KOBU HESO H.SO HO PPh Br 2. F. 1. LDA - CHI 3. LDA 4. CHI 1. (COC), DMSO Σ ΕΙΝ осн H. OCH I. OH
EvEvv All I AaBbccdee AaBbCcDdfe Aa BbCcDc AaBbCcDdE Aa BbCcDc irau MIII Normal No Spacing Heading 1 Heading 2 Title H2SO4 (catalytic) heat 2 + OH attack ortho to OH & para to X xanthene type dye: X = OH (fluorescein) X = N(CH2CH3)2 (rhodamine B) This reaction involves two subsequent Friedel-Crafts acylation reactions. What is the structure of the intermediate after the first Friedel-Crafts reaction? (6 pts.) 1
please help!
the final products woukd bw fluorescein for one and rhodamine
for the other (2 different outcome but still the same method)
B: 7) Mechanistically show how the following compound can be converted to the final product. (8 pts.) (Hint: It is related to one of your previous experiments this semester.) OH COOH X = OH or NET ators. They are often fluorescent and have been used corneal abrasions, as antibacterials and anticancer by a Friedel-Crafts acylation reaction. Friedel-Crafts...
Question 1 (10 pts). When N,N-dimethylaniline is treated with bromine, ortho and para products are formed. Note that this ring is so activated that a Lewis acid catalyst is not needed. Yet, when this material is treated with nitric/sulfuric acids, only the meta product is formed indicative of a very deactivated ring). Explain these curious results. z Br2 Br HNO, H2SO4 NO
I
understand that OH is a EDG so I expect a para/ ortho position but
how doni determine the major product and which sode of the ring it
will be on
Which of the following is the major product of the nitration reaction of compound 1 below? ÇO-OH HNO3 /H2SO4 ????? CO-OH СО-он со-он CO-OH NO2 ON CO-OH CO-OH ON CO-OH II (b) III (c) IV (e) III & IV (d) II & III If thiophene below reacts like benzene,...
2. D type and strength of each substituents as activating(A) or outcome as ortho-para (O/P) or meta(M) directors. (6 pts) you expect an electrophile to be attached to the ring You must identify the deactivating(D) and also the expected regiochemical 3. Use aromatic, non aromatic or antiaromatic concepts to explain the reactions or molecules shown (6 pts) Provide a curved arrow mechanism to show the formation of a aromatic carbocation intermediate Show the final product H-I The pK,values for the...
Reaction 1: Nitration HNO3 NO2 H2SO4, H20 NO2 toluene NO2 ortho meta para Procedure for Reaction 1: 1) To a stirred solution of 3 mL (44.7 mmoles) 67 % HNO3 in 3.75 mL of water, H2SO4 (9 mL) was slowly added at 10-15 °C. 2) This nitrating solution was added dropwise with vigorous stirring to 4 mL (37.5 mmoles) of toluene while cooling in ice-water in order to maintain the reaction temperature between 15 and 25 °C. 3) Stirring was...
Consider the following substitution reaction: OH H2SO4 CHBОН + - Нао 1. (1 point) What type of substitution reaction is this? Answer: SN1 2. (2 points) Assume that you are performing the above reaction in the lab. You are using 5 g of tert-butanol (FW: 74.123), 20 mL of concentrated sulfuric acid (FW: 98.079, d-1.84 g/mL), and 200 mL of methanol (FW: 32.04, d 0.792 g/mL). You obtained 5 mL of methyl tert-butyl ether (FW: 88.150, d 0.7404 g/mL). Determine...
catalytic H2SO4 но Он С НО A B ОН он с D ОА ОС OD Predict the product from the following reaction HS SH ZnCl2 BO OH O Provide the major product for the following reaction sequence. 1. NHANH4H 2. KOHIHOIA AICI ad dan III H2NN TV OM OM O IV What would be the expected product of the following reaction sequence? N-H 12 HO OH Predict the major organic product of the following reaction sequence. 1) (Ph)3P Br ?...
2. Study the third step (below) and answer the questions that follow. HO НО, ...OH X H,SO. (cat) ""он. H20 80% 2.1 What type of reaction is taking place in this step? Explain 2.2 What is the name of the functional group that is being transformed? 2.4 Under the reaction conditions described, it is mechanistically possible that the reaction below can take place, using the same principles of your previous answer in 2.3. However, this does not seem to be...
product the product for the following reaction carboxylic acid
+ h2so4 heat
B. NBS NaoMe МОН 0°C tBuCOtBu CO E A. NBS - N-bromosuccinimide Ph OTBS 90°C "CO,CH C. 1. MgBr (CHOTMS 1. DIBAL-H 2. H0 2. H,0 H.CÓ E. DIBAL-H - diisobutylaluminum hydride TMS-trimethylsilyi (alcohol protecting group) D. G. OCH 1. KOBU HESO H.SO HO PPh Br 2. F. 1. LDA - CHI 3. LDA 4. CHI 1. (COC), DMSO Σ ΕΙΝ осн H. OCH I. OH
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