《Organic Chemistry》(A) Midsemester with solution Name: Student ID Credit 1.Name the following compounds in English(IUPAC)and Chinese(CCS)(20) 、人人 IUPAC: (R)-3-Methylheptane CCS: (R3甲基庚烷 2.9 IUPAC (S.S)-4-Bromo-2-hexanol CCS: (S,S)-4溴-2-己醇 3.HTF IUPAC: (3R.4S)-3-Chloro-4-Fluorohexane H-CI ccs: (3R4S3-氟-4氯己烷 4. IUPAC (R.R)-1.2-Dichlorocyclopentane CCS: (RR)-1,2-二氯环戊烷 2.Stereochemistry(30) 1.Identify which of the following compounds possess optical activity.(8) Br CXY Answer:c,d. 2.Identify the relationship of the following structures (identical,nantiomer,diastereomer) a Ph b Ph H Ph H H Hph (1)a and b:enantiomers (0) (3)aand d:identical (4)bandc:diasteromers (5)b and d:enantiomers1 《Organic Chemistry》(A) Midsemester with solution Name:_____________ Student ID. _______________ Credit: _________________ 1. Name the following compounds in English (IUPAC) and Chinese (CCS) (20) (R)-3-Methylheptane (R)-3-甲基庚烷 (S,S)-4-Bromo-2-hexanol (S,S)-4-溴-2-己醇 (3R,4S)-3-Chloro-4-Fluorohexane (3R,4S)-3-氟-4-氯己烷 (R,R)-1,2-Dichlorocyclopentane (R,R)-1,2-二氯环戊烷 2. Stereochemistry (30) 1． Identify which of the following compounds possess optical activity. (8) H H H CO2H HO2C H Br Bu-t a b c d Answer: c, d. 2. Identify the relationship of the following structures (identical, enantiomer, diastereomer). H Ph F Ph H F a b c H Ph F H Ph F Ph F Ph F H H H Ph F F Ph H d (1) a and b: enantiomers (2) a and c: diasteromers (10) (3) a and d: identical (4) b and c: diasteromers (5) b and d: enantiomers Cl Et H Et H F 1. 2. OH Br Cl Cl 3. 4. IUPAC: CCS: IUPAC: CCS: IUPAC: CCS: IUPAC: CCS: