【正文】
3 95 CH(CH3)2 97 C(CH3)3 K< 1 取代環(huán)己烷的構(gòu)象 2)多取代環(huán)己烷 e鍵上取代基多,構(gòu)象穩(wěn)定 e鍵上有體積較大的取代基,構(gòu)象穩(wěn)定 CH3 (CH3)3C CH3 (CH3)3C 順-1-甲基-4-叔丁基環(huán)己烷 反-1-甲基-4-叔丁基環(huán)己烷 思考: 1-氯- 4-溴環(huán)己烷的穩(wěn)定構(gòu)象? Cl Br H H H H 取代環(huán)己烷的構(gòu)象 1)多取代環(huán)己烷 CH3 (CH3)3C 1-氯- 3-溴環(huán)己烷 H H H H CH3 (CH3)2HC 1-甲基- 2-異丙基環(huán)己烷 H H H Cl Br Br Cl 反式 順式 H 反式 順式 練習(xí) (A)與 (B)為對映體 C H 3C H 3B rHO HHHB rHO HHH( 6 ) C CH OC H 3HHC H 3O H C CC H 3O HH OHHC H 3( 7 ) C H 3C H 3N H 2HO HHN H 2HHH 3 CO HH 3 C( 8 ) H C H 3C H 3 HC H 3 HH C H 3( 9 ) C H 3C H 3 C H 3 C H 3( 1 0 ) C lC lHHC lHC lH( 5 )( A) ( B) ( R) 1溴丙醇 ( S) 命名下列手性化合物 1C H C lC lC HH232O HB rHC H 33HHHC lC lC l4( C H ) C H CC HHC H C H 23 25HC HC HHC lC l336C H S HHH C lC HB r37HHC lO H8HC H 31C H C lC lC HH232O HB rHC H 33HHHC lC lC l4(C H ) C H CC HHC C H 23 25HC HC HHC lC l336C H S HHH C lC HB r37HHC lO H8HC H 3( 1S, 2R) 2-氯環(huán)戊醇 R1(2環(huán)戊烯基 )1(3’環(huán)戊烯基 )乙烷 1C H C lC lC HH232O HB rHC H 33HHHC lC lC l4( C H ) C HC C HHC H C H 23 25HC HC HHC lC l336C H S HHH C lC HB r37HHC lO H8HC H 3(2R,3R)2,3二氯丁烷 1C H C lC lC HH232O HB rHC H 33HHHC lC lC l4(C H ) C HC C HHCH C H 23 25HC HC HHC lC l336C H S HHH C lC HB r37HHC lO H8HC H 3(2S,3R)3氯 2溴丁硫醇 命名下列手性化合物 1C H C lC lC HH232O HB rHC H 33HHHC lC lC l4( C H ) C H CC HHC H C H 23 25HC HC HHC lC l336C H S HHH C lC HB r37HHC lO H8HC H 3S1,2二氯丙烷 S1溴 1乙烷 1C H C lC lC HH232O HB rHC H 33H HHC lC lC l4( C H ) C H CC HHC H C H 23 25HC HC HHC lC l336C H S HHH C lC HB r37HHC lO H8HC H 3(R)3異丙基 1戊烯 4炔 判斷下列分子的手性 1C lC H3 2O HO H34HHO HO HC HC H3356OHC H37C HHC CC HC HC CHHCH2 523H58C H39C H3O HO HHH