11. Compound A, C9H17N, is an optically inactive alkaloid, containing a tertiary amine that is not located at the bridgehead of the structures fused bicyclic ring system. Exhaustive alkylation of A with methyl iodide, followed by a Hofmann elimination reaction resulted in a racemic mixture of chiral tertiary amine products B, C10H19N. Provide a structure for A and one of the enantiomeric products B.
Q: The following sterol reacts with excess 1)BH3 and 2)H202/OH¯ which converts both double bonds.…
A: The double bonds show addition reaction when treated with diborane in the presence of H2O2/OH-.
Q: The natural product halomon could theoretically arise from another naturally occurring compound…
A: In the given reaction, myrcene reacts with 3 equivalent of Br-Cl to form halomon. Since there are 3…
Q: 1. The molecular formula of an unknown compound A is C7H14. On ozonolysis, A gave two products B…
A: The given compound (A) has molecular formula C7H14 which suggest that A is an alkene as alkenes have…
Q: Compound A has the formula C10H16. On catalytic hydrogenation over palladium, it reacts with only…
A: Compound A consists of two rings and one double bond which up on Ozonolysis gives two cyclopentanone…
Q: Compound AA, C4H8O, gives a positive result (formation of a silver mirror) when reacted with…
A: Aldehydes, ketones, alcohols, carboxylic acids, etc. are different classes of compounds. Each of…
Q: Compound X, C7H14 undergo hydration to form Y which is optically active. X reacts with cold alkane…
A:
Q: 9) Provide a structure of an isomer that has the molecular formula CSH12N2 and fits the criteria…
A: Isomers are the compounds that have the same molecular formula but different structural formulas. A…
Q: In 1887, the Russian chemist Sergei Reformatsky at the University of Kiev dis- covered that…
A: The given reaction is represented as follows:
Q: Farnesyl diphosphate is cyclized to sesquiterpene A, which is then converted to the bicyclic product…
A: The first step is the removal of the diphosphate group from farnesyl diphosphate. This results in…
Q: a) Compound 1 is a nonsteroidal anti-inflammatory (NSAID) drug. Knowing that its thiazole ring can…
A:
Q: 1. how many stereoisomers are possible for 9,10- dibromo hexadecanoic acid? 2. Addition of bromine…
A: 1- To calculate the number of stereoisomers in a compound, first find the number of chiral centers…
Q: Suggest reagents and experimental conditions for each step in this synthesis
A: In organic chemistry various compounds are formed. These compounds are formed from step to step…
Q: The hydronaphthacene ring system consists of five fused six-membered rings, as shown below in…
A: Ans) Compound 4 has an internal plane of symmetry, so it has fewer signals in its 13C NMR spectrum.
Q: Which of the following statements is correct? A) The haloform reaction proceeds under very…
A: Haloform test is test that is used determine presence of carbonyl compounds containing R-CO-CH3 or…
Q: Benzene, C6H6 undergoes substitution reaction with concentrated nitric acid, HNO3 to produce…
A: In organic chemistry, inter conversion of organic molecule takes place from one form to another form…
Q: The ketone shown was prepared in a three-step sequence from ethyl trifluoroacetate. The first step…
A: Ethyl Trifluoroacetate on reaction with NH3 give amide. Amides on reaction with Grignard reagent…
Q: . In the synthesis of 1-bromobutane, what is the inorganic by-product left in the reaction flask…
A: Explained as follows
Q: ) Compound AA has a molecular formula of CsHso and gives a positive result using Tollen's reagent.…
A:
Q: Compounds X has the formula C7H15Cl; Y is C7H15Br.X undergoes base-promoted E2 elimination to give a…
A: The compound X has formula C7H15Cl.The compound Y has formula C7H15Br. It is given that catalytic…
Q: Syntheses of each of the following compounds have been reported in the chemical literature. Using…
A: Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…
Q: Which of the following statements is correct? A. The haloform reaction proceeds under very difficult…
A:
Q: 1. PPH3 Br X reacts further with carbonyl- containing compound (not part of this question) 2. MeLi…
A: Alkyl halide reacts with PPh3 to give a phosphorous derivative. This on reaction with strong base,…
Q: 4. Predict the biotransformation and conjugation metabolite of below molecule
A: Biotransformation is the alteration of molecule without breaking the bonds.
Q: (E)-1-2- Diphenylethene reacts with Br 2 /CCI4 (see reaction) the reaction product is obtained (A)…
A:
Q: The question has been attached as a picture. Please answer this question as every other question I…
A: Please note that ethyloxirane mentioned in the question has a structureSo the name in the brackets…
Q: Compound C has the molecular formula C;H12. On catalytic hydrogenation, 1 mol of C absorbs 1 mol of…
A:
Q: (d) Consider the following structure of compound C: Compound C i. Assign E or Z to the double bond…
A: Given compound is:
Q: A certain unknown compound has the molecular formula C10H16. On catalytic hydrogenation with Pt,…
A: The degree of unsaturation in a compound can be calculated by : Degree of…
Q: (a) Give a plausible explanation for each one of the following :(i) There are two – NH2 groups in…
A: It is a derivative of urea. Semicarbazide is the chemical compound with the formula OC. It is a…
Q: a. Propose an electron pushing mechanism for the conversion of o-phenylene diamine plus formic acid…
A: Since you have asked multiple question, we will solve the first question for you. If you want any…
Q: 6.5 Outline the synthesis of 4-methyl-2-pentanone from acetoacetic ester, benzene, and alcohols of…
A:
Q: When N-bromosuccinimide is added to hex-1-ene in CCl4 and a sunlamp is shone on themixture, three…
A: NBS is a source of bromine atom which abstract hydrogen atom from alkene at allylic position and…
Q: An unknown organic compound P has a molecular formula of CaH160. P reacts with 2,4-…
A: Given , unknown organic compoun P has molecular formula C8H16O P react with dinitrophenylhydrazine…
Q: Compound A is an optically active alcohol. Treatment with chromic acid converts A intoa ketone, B.…
A: Chromic acid is an oxidising agent which converts alcohols to either aldehyde or ketone. Actually,…
Q: The chiral hydroxyl compound P, C7H14O contains a five-membered ring and shows positive result in…
A: This question is related to finding out the structures of unknown compounds involving specific type…
Q: 1. The essential oils of well known fragrant plants contains monoterpenoids and sesquiterpenoids.…
A: Building blocks for all terpenes are IPP ( isoprenyl pyrophosphate) and DMAPP (…
Q: (a) Write a suitable chemical equation to complete each of the following transformations :(i)…
A: We are authorized to answer one question at a time, since you have not mentioned which question you…
Q: When 2,2-dimethyl-1-propanol is heated with acid, it is slowly converted into an 85:15 mixture of 2…
A: Organic reaction mechanisms:
Q: A racemic mixture of 2-methyl-1-phenyl-1-butanone is formed when (R)-2-methyl-1-phenyl-1-butanone is…
A: An example of another ketone that undergoes acid- or base-catalyzed racemization has to be given,
Q: a) Compound 1 is a nonsteroidal anti-inflammatory (NSAID) drug. Knowing that its thiazole ring can…
A:
Q: Reaction of toluene with bromine gas and AlBr3 will produce two major products of aryl halides which…
A: Electrophilic aromatic substitution of aromatic compounds.
Q: Propose a synthesis for propoxyphene from 1-phenyl-1-propanone and any other necessary reagents.
A:
Q: Compounds X has the formala CyH15CI: Y is CH15Br. X undergoes base-promoted E2 elimination to give a…
A: Both product X and Y are formed by E2 elimination reaction. X and Y are isomeric. X undergoes SN2…
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 1 images
- (a) Give a plausible explanation for each one of the following :(i) There are two – NH2 groups in semicarbazide. However, only one such group is involved in the formation of semicarbazones.(ii) Cyclohexanone forms cyanohydrin in good yield but 2, 4, 6-trimethylcyclohexanone does not.(b) An organic compound with molecular formula C9H10O forms 2, 4, – DNP derivative, reduces Tollens’ reagent and undergoes Cannizzaro’s reaction. On vigorous oxidation it gives 1, 2-benzene-di- carboxylic acid. Identify the compound.Compelling evidence for the existence of a tetrahedral intermediate innucleophilic acyl substitution was obtained in a series of elegantexperiments carried out by Myron Bender in 1951. The key experimentwas the reaction of aqueous −OH with ethyl benzoate (C6H5COOCH2CH3)labeled at the carbonyl oxygen with 18O. Bender did not allow thehydrolysis to go to completion, and then examined the presence of alabel in the recovered starting material. He found that some of therecovered ethyl benzoate no longer contained a label at the carbonyloxygen. With reference to the accepted mechanism of nucleophilic acyl substitution, explain how this provides evidence for a tetrahedralintermediate.When N-bromosuccinimide is added to hex-1-ene in CCl4 and a sunlamp is shone on themixture, three products result.(a) Give the structures of these three products
- An optically active alkyne A (C10H14) can be catalytically hydrogenated to butylcyclohexane. Treatment of A with EtMgBr liberates no gas. Catalytic hydrogenation of A over Pd/C in the presence of quinoline poison and treatment of the product with O3 and then H2O2 gives an optically active tricarboxylic acid C8H12O6 (A tricarboxylic acids is a compound with three - CO2H groups.). Give the structure of A, and account for all observations.Compound A has the molecular formula C14H25Br and was obtained by thereaction of sodium acetylide with 1,12-dibromododecane. On treatment ofcompound A with sodium amide, compound B (C14H24) was obtained. Ozonolysisof compound B gave the diacid HO2C(CH2)12CO2H. Catalytic hydrogenation ofcompound B over Lindlar palladium gave compound C (C14H26), andhydrogenation over platinum gave compound D (C14H28). Further, C yieldedO=CH(CH2)12CH=O on ozonolysis. Assign structures to compounds A through Dso as to be consistent with the observed transformations.The Favorskiireaction involves treatment of an a-bromo ketone with base to yield a ring-contracted product. For example, reaction of 2-bromocyclohexanone with aqueous NaOH yields cyclopentanecarboxylic acid.what is the mechanism of the reaction.
- When N-bromosuccinimide is added to hex-1-ene in CCl4 and a sunlamp is shone on themixture, three products result.(a) Give the structures of these three products.(b) Propose a mechanism that accounts for the formation of these three productsCompelling evidence for the existence of a tetrahedral intermediate in nucleophilic acyl substitution was obtained in a series of elegant experiments carried out by Myron Bender in 1951. The key experiment was the reaction of aqueous −OH with ethyl benzoate (C6H5COOCH2CH3) labeled at the carbonyl oxygen with 18O. Bender did not allow the hydrolysis to go to completion, and then examined the presence of a label in the recovered starting material. He found that some of the recovered ethyl benzoate no longer contained a label at the carbonyl oxygen. With reference to the accepted mechanism of nucleophilic acyl substitution, explain how this provides evidence for a tetrahedral intermediate.Compelling evidence for the existence of a tetrahedral intermediate in nucleophilic acyl substitution was obtained in a series of elegant experiments carried out by Myron Bender in 1951. The key experiment was the reaction of aqueous−OH with ethyl benzoate (C6H5COOCH2CH3) labeled at the carbonyl oxygen with 18O. Bender did not allow the hydrolysis to go to completion, and then examined the presence of a label in the recovered starting material. He found that some of the recovered ethyl benzoate no longer contained a label at the carbonyl oxygen. With reference to the accepted mechanism of nucleophllic acyl substitution, explain how this provides evidence for a tetrahedral intermediate.
- Over the past several decades, chemists have developed a number of synthetic methodologies for the synthesis of steroid hormones. One of these, developed by Lutz Tietze at the Institut für Organische Chemie der Georg-August-Universität, Göttingen, Germany, used a double Heck reaction to create ring B of the steroid nucleus. As shown in the following retrosynthetic analysis, a key intermediate in his synthesis is compound (1). Two Heck reaction disconnects of this intermediate give compounds (2) and (3). Compound (2) contains the aromatic ring that becomes ring A of estrone. Compound (3) contains the fused five- and six-membered rings that become rings C and D of estrone. Q.Propose structural formulas for compounds (2) and (3).Over the past several decades, chemists have developed a number of synthetic methodologies for the synthesis of steroid hormones. One of these, developed by Lutz Tietze at the Institut für Organische Chemie der Georg-August-Universität, Göttingen, Germany, used a double Heck reaction to create ring B of the steroid nucleus. As shown in the following retrosynthetic analysis, a key intermediate in his synthesis is compound (1). Two Heck reaction disconnects of this intermediate give compounds (2) and (3). Compound (2) contains the aromatic ring that becomes ring A of estrone. Compound (3) contains the fused five- and six-membered rings that become rings C and D of estrone. Q.Name the types of functional groups in estroneOver the past several decades, chemists have developed a number of synthetic methodologies for the synthesis of steroid hormones. One of these, developed by Lutz Tietze at the Institut für Organische Chemie der Georg-August-Universität, Göttingen, Germany, used a double Heck reaction to create ring B of the steroid nucleus. As shown in the following retrosynthetic analysis, a key intermediate in his synthesis is compound (1). Two Heck reaction disconnects of this intermediate give compounds (2) and (3). Compound (2) contains the aromatic ring that becomes ring A of estrone. Compound (3) contains the fused five- and six-membered rings that become rings C and D of estrone. Q.How many chiral centers are present in estrone?