Question

8) Provide the reagents necessary to carry out the following reaction sequence. OH ОН ОН عزاداری مشین رم ، می A B

Answer 1

OH 8.00 K₂Cr₂O74 (n. 1h 504 9.00 step-I I ROS ® Stapel 10.00 OH CH₃ CH2 Mg Br H₂O 11.00 12.00 1.00 2.00 3.00 © Step-ty Step-It If we use strong onidising reagent like K₂Cr2O7 and 14,504 then alcohol converts to acid. Katr, dа t Corv.msa, [с [0] 7 [0] At first aldehyde was formed which was further onitised to acid, Hot If aid was heated in presence of P OF one mole water was released frout 2 meine and SUNDÃY'14 and converts into anhydride, 4.00 5.00 6.00 hos, 7.00 OH Notes

200 step-mr If Cltzetly Mg Br was added to the anhydride 300 at first it converts to Ketone. Again another est un Mg Br was attacks to the ketonets give which loyd If is hydrolysed using dilute and if gives the desired compormd. Mechanism 4.00 5.00 SUNDAY 07 6.00 lalts 7.00 CH3Cb My Br eio) czeln agar "O - My Br On Notes t H307