1. 1. Trng i Hc S Phm TPHCM Khoa Ho hc Bi tp ln 2 mn Tin hc ng dng trong ho hc
2. 2. I. nh ngha & phn loi III. Tnh cht ha hc IV. iu ch & ng dng II. Tnh cht vt l c im cu to? Cch thc phn loi? So snh vi ancol thm? Trng thi t nhin? Mu sc? tan? Phn ng c trng? nh hng ca cu to n TCHH? ng dng trong thc t? Cch iu ch thng dng? CU TRC BI GING
3. 3. Ging nhau Khc nhau v C2H5OH v 1. nh ngha Hon thnh phiu hc tp s 1 INH NGHIA, PHN LOAII
4. 4. Ging nhau Khc nhau v u c vng thm Phenol c nhm OH gn trn vng thm C2H5OH v u c nhm OH trong phn t Phenol:Nhm OH gn trn vng thm. Ancol etylic: Nhm OH gn vi gc hidrocacbon no. 1. nh ngha INH NGHIA, PHN LOAII nh ngha ca phenol?
5. 5. 1. nh ngha Phenol l nhng hp cht hu c m phn t c cha nhm hidroxyl (OH) lin kt trc tip vi nguyn t cacbon ca vng benzen. V d: INH NGHIA, PHN LOAII
6. 6. INH NGHIA, PHN LOAII So snh Ancol thm vi Phenol Phenol Ancol thm Nhm OH lin kt trc tip vi nguyn t C no?
7. 7. 2. Phn loi + Monophenol: phn t cha 1 nhm OH VD: + Poliphenol: phn t cha nhiu nhm OH VD: INH NGHIA, PHN LOAII Ch : Ancol thm l nhng hp cht hu c m phn t c cha nhm OH nh vo mch nhnh ca vng benzen
8. 8. - Phenol l cht rn mu trng, d b chy ra. -Tan t trong nc lnh, tan v hn 66oC, tan tt trong etanol, ete v axeton, TNH CHT VT LII - Phenol c, khi tip xc vi da s gy bng. Cho bit: Trng thi t nhin, mu sc ca phenol? Kh nng ho tan trong nc nng? Trong nc lnh?
9. 9. TNH CHT HA HCIII Hon thnh phiu hc tp s 2: So snh: + linh ng ca lin kt O-H trong phn t ancol v phn t phenol? + linh ng ca nguyn t H vng thm trong phn t phenol v phn t benzen? .................. T d on tnh cht ho hc ca phenol? Lin kt O-H trong phn t phenol linh ng hn trong phn t ancol Nguyn t H vng thm trong phn t phenol linh ng hn trong phn t benzen Phn ng th nguyn t H trong nhm -OH v phn ng th nguyn t H trong vng thm
10. 10. TNH CHT HA HCIII Phn ng th nguyn t H ca nhm -OH + Tc dng vi kim loi kim + Tc dng vi dung dch kim Phn ng th nguyn t H ca vng benzen M E
11. 11. TNH CHT HA HCIII 1. Phn ng th nguyn t H ca nhm OH Tc dng vi kim loi kim: Phenol phn ng vi kim loi kim tng t nh ancol:
12. 12. TNH CHT HA HCIII 1. Phn ng th nguyn t H ca nhm OH Tc dng vi kim loi kim: Tc dng vi dung dch kim: Hin tng: Phenol tan to dung dch trong sut Ancol khng cho phn ng vi dung dch kim V sao dung dch tr nn trong sut Phn bit phenol vi ancol
13. 13. TNH CHT HA HCIII Phenol c tnh axit, tuy nhin tnh axit rt yu, khng lm qu tm. Tnh axit ca phenol yu hn axit cacbonic. V sao dung dch b c tr li. Phn ng chng t tnh cht g ca phenol
14. 14. TNH CHT HA HCIII Hin tng xy ra khi thm Br2 vo phenol. 2. Phn ng th nguyn t H ca vng benzen Hin tng: Dung dch Brom b mt mu, xut hin kt ta mu trng kt ta trng Phn ng dng nhn bit phenol
15. 15. Vng thm l nhm rt electronlin kt O-H phn cc hnNguyn t H linh ng hn so vi ancol Phenol c tnh axit nhng rt yu. Nhm -OH l nhm y electron Mt e vng benzen tng, nht l v tr o & p. Phn ng th nhn thm d hn benzen. TNH CHT HA HCIII 3. nh hng qua li gia cc nhm nguyn t trong phn t
16. 16. CH CH3 CH3 CH CH3 CH3 OH CH3CH3 C O + CH2 = CH CH3 1.O2 2. H2SO4 + H+ C6H6 C6H5Br C6H5OH * Tch t nha than IU CH & NG DNGIV 1. iu ch * Trong cng nghip ngy nay: * Trc kia:
17. 17. Pham nhuom IU CH & NG DNGIV 2. ng dng
18. 18. Chat ket dnh IU CH & NG DNGIV 2. ng dng
19. 19. Thuoc no ( 2,4,6 - trinitrophenol) IU CH & NG DNGIV 2. ng dng
20. 20. Sn xut thuc dit c 2,4 D IU CH & NG DNGIV 2. ng dng
21. 21. Nc dit khunCht dit nm IU CH & NG DNGIV 2. ng dng