piperonyl alcohol --> piperonalMnO2, molecular sieves, hexane, 2h
"... the hydrolytically labile methylenedioxy linkage in 1l survived,
giving piperonal 2l, an important fragrance and a synthetic precursor
..., in quasiquantitative yield."
journal of chemical research (synopses), 1998 (6), 308-309
"oxidation by chemical manganese dioxide.
part 1. facile oxidation of benzylic alcohols in hexane"
masao hirano, sigetake yakaba, hideki chikamori,
james h. clark, takashi morimoto
abstract: an inexpensive, stable, commercially available reagent, chemical
manganese dioxide, can be used for the oxidation of a wide variety of
benzylic alcohols and the C-C bond cleavage of aromatic diols in hexane
under relatively mild conditions.
piperonyl alcohol --> piperonalMnO2(CMD), CH2Cl2, ambient temperature, 24h, yield 95%
synlett, 1998 1, 35-36
"chemical manganese dioxide (CMD), an efficient activated manganese
dioxide. application to oxidation of benzylic and allylic alcohols"
toyohiko aoyama, naoko sonoda, mariko yamauchi, kyoko toriyama,
masahiro anzai, akira ando, takayuki shioiri
abstract: oxidation of benzylic and allylic alcohols with chemical manganese
dioxide smoothly proceeded under mild reaction conditions to give the
corresponding aldehydes and ketones, respectively, in high yields.
piperonyl alcohol --> piperonalCH2Cl2, 3h, yield 96%
j chem soc dalton trans, 1989, 901-906
ahmed m el-hendawy, william p griffith, fatma i taha, mahmoud n moussa
piperonyl alcohol --> piperonalH2O2, ligninase(catalyst), ambient temperature,
pH 3.0, subject studied, product distribution
phytochemistry, 1991 30 1, 121-126
agnes ageorges, andrew pelter, robert s ward
4-methoxybenzyl alcohol --> anisaldehydeKMnO4, 45min, yield 95% (reaction 14 on page 5834)
tetrahedron letters, 2001 42, 5833-5836
"solvent free permanganate oxidations"
ahmad shaabani, donald g lee
abstract: the oxidations of organic compounds by permanganate under solvent free con-
ditions have been studied. thiols and primary aromatic amines undergo oxidative coupling
reactions to give disulfides and diazenes, respectively, sulfides are oxidized to sulfones,
primary and secondary alcohols are converted to aldehydes and ketones, 1,4-diols and
cyclic ethers give lactones and arenes are oxidized to the corresponding alpha-ketones.
the experimental procedure is simple and the products are easily isolated in good yields.
https://www.thevespiary.org/rhodium/Rhodium/pdf/solventfree.kmno4.oxidation.pdf
benzyl alcohols --> benzaldehydessynthetic communications, 2001 31(9), 1389-1397
"SILICA GEL SUPPORTED JONES REAGENT (SJR):
A SIMPLE AND EFFICIENT REAGENT FOR OXIDATION
OF BENZYL ALCOHOLS TO BENZALDEHYDES"
mohammed hashmat ali, candace j wiggin
abstract: Jones reagent supported on silica gel (SJR) has been used for
oxidation of benzyl alcohols to the corresponding benzaldehydes in high yields
utilizing organic solvent. This newly developed reagent is easy to prepare and
use. SJR is also safer than the traditional Jones reagent.
benzyl alcohol --> benzaldehydesilica gel supported ferric nitrate reagent, hexane, heating, 4h
synth commun, 1998 28 2, 207-212; bhushan khadilkar, shobha borkar
benzyl alcohol --> benzaldehydetetrahedron letters, 1997 38(45), 7823-7824
"active manganese dioxide on silica: oxidation of alcohols
under solvent-free conditions using microwaves"
rajender s.a varma, rajesh k.a saini, rajendera dahiya
abstract: alcohols are rapidly and selectively oxidized to the corresponding
carbonyl compounds by silica supported active manganese dioxide under
solvent-free conditions using microwaves.
https://www.thevespiary.org/rhodium/Rhodium/pdf/mw.mno2.benzaldehyde.pdf
benzyl alcohol --> benzaldehydeMnO2/bentonite, chromat, irradiation, 175C, 1min, yield 40%
tetrahedron lett, 1993 34 33, 5293-5294
luis a martinez, olivia garcia, francisco delgado, cecilio alvarez, rocio patino
benzyl alcohol --> benzaldehydemanganese dioxide, turnov, hexane, 20C, yield 60%
j chem soc perkin trans 1, 1990 7, 1937-1943
jose a s cavaleiro, maria g p s neves, michael j e hewlins, anthony h jackson
benzyl alcohol --> benzaldehydeHBr, H2O2, CH2Cl2, 60C, 4h, yield 84%
bull soc chim fr, 1988 4, 756; jihad dakka, yoel sasson