Gas-phase determination of the geometric requirements of the silicon .beta.-effect. Photoelectron and Penning ionization electron spectroscopic study of silylthiiranes and -oxiranes. Synthesis and chemistry of trans-2,3-bis(trimethylsilyl)thiirane
The chemistry of sulfines. 13. 2-Thiabicyclo[2.2.1]hept-5-ene and its S-oxides and 3-alkyl derivatives: sulfine and sulfene cyclopentadiene Diels-Alder adducts. Conversion of the cyclopentadiene-sulfine adducts into 2-oxa-3-thiabicyclo[3.3.0]oct-7-enes, novel bicyclic sultenes
The chemistry of sulfines. 9. A novel synthesis of α-chloroalkyl alkanethiosulfonate esters
作者:Eric Block、Ali A. Bazzi
DOI:10.1016/s0040-4039(00)85656-7
日期:1982.1
Sulfines react with sulfinyl chlorides giving α-chloroalkyl alkanethiosulfonate esters and with thionyl chloride giving α-chloroalkanesulfenyl chlorides, both in good yields.
<i>Allium</i> Chemistry: Microwave Spectroscopic Identification, Mechanism of Formation, Synthesis, and Reactions of (<i>E</i>,<i>Z</i>)-Propanethial <i>S</i>-Oxide, the Lachrymatory Factor of the Onion (<i>Allium cepa</i>)
作者:Eric Block、Jennifer Z. Gillies、Charles W. Gillies、Ali A. Bazzi、David Putman、Larry K. Revelle、Dongyi Wang、Xing Zhang
DOI:10.1021/ja960722j
日期:1996.1.1
Flow pyrolysis of 2-methyl-2-propyl 1'-propenyl sulfoxide (9b) affords a 98:2 mixture of (Z)- and (E)-propanethial S-oxide ((Z)- and (E)-5b), both characterized by Fourier transform microwave (FT-MW) spectroscopy, Sulfines (Z)- and (E)-5b are also identified by FT-MW in chopped onion volatiles and by NMR spectroscopy in onion extracts. Similarly, flow pyrolysis of 2-methyl-2-propyl vinyl sulfoxide (9c) affords (Z)- and (E)-isomers of ethanethial S-oxide (5a), identified by FT-MW methods. Pyrolysis in the presence of D2O affords (Z)-5a-d(1) and (Z)-5a-d(2) from 99 and (Z)-5b-d(1) from 9b; (Z)-5b-d(1) is also produced when an onion is homogenized in D2O. Pyrolysis of 9c with ethyl propiolate gives ethyl (E)-3-(vinylsulfinyl)acrylate (10). Neat 59 at 100 degrees C gives acetaldehyde. On standing, 5b dimerizes to trans-3,3-diethyl-1,2-dithietane 1,1-dioxide (12a); Me(3)SiCH=S+-O- (5f) undergoes an analogous dimerization. Compound 5b shows moderate potency as an anticarcinogen in inducing the enzyme quinone reductase.
Synthesis of methanethial s-oxide (sulfine) and alkanethial s,s-dioxides by fluorodesilylation. Stereochemistry of their cyclopentadiene diels-alder adducts
作者:Eric Block、Alan Wall
DOI:10.1016/s0040-4039(00)99062-2
日期:1985.1
BLOCK, E.;BAZZI, A. A., TETRAHEDRON LETT., 1982, 23, N 44, 4569-4572
作者:BLOCK, E.、BAZZI, A. A.
DOI:——
日期:——
BLOCK, E.;WALL, A., TETRAHEDRON LETT., 1985, 26, N 11, 1425-1428