Zobrazeno 1 - 10
of 14
pro vyhledávání: '"David F. Maynard"'
Publikováno v:
US-China Education Review A. 5
Publikováno v:
Journal of Chemical Ecology. 24:867-889
Several insecticidal compounds have been identified by bioassaydriven fractionation of avocado, Persea americana Mill, idioblast cell oil. A flash chromatography fraction of the oil showed substantial toxicity to early instars of the generalist insec
Autor:
David F. Maynard, William H. Okamura
Publikováno v:
The Journal of Organic Chemistry. 60:1763-1771
Publikováno v:
ChemInform. 28
Publikováno v:
The Journal of Organic Chemistry. 57:3214-3217
A bridged ether , produced via light-induced lead tetraacetate oxidation of Grundmann's alcohol 1-[1,5-dimethylhexyl]-7a-methyl perhydro inden-4-ol, was transformed in three to four steps to CD-ring ketones which were transformed via Horner-Wittig co
Publikováno v:
The Journal of Organic Chemistry. 57:1982-1986
The kinetics of the mercury(II)-promoted hydrolyses of acyclic O,S-acetals of benzaldehyde have been measured to establish that (i) mercury(II) is a reagent, not a catalyst, in the hydrolysis reaction, (ii) the rate-limiting step can be any of the th
Autor:
James L. Jensen, David F. Maynard
Publikováno v:
The Journal of Organic Chemistry. 55:4828-4831
This is a kinetic study of the hydrolysis of an acyclic O,S-acetal promoted by heavy metal ions. The acyclic structural feature is important because it precludes the potential return of the sulfur moiety at the spectral concentrations at which experi
Publikováno v:
Journal of agricultural and food chemistry. 48(8)
The importance of the double bonds in the furan ring of avocadofurans with relation to their insecticidal activity was examined. The insecticidal activity of two naturally occurring avocadofurans, 2-(pentadecyl)furan and 2-(heptadecyl)furan, was comp
Publikováno v:
Journal of natural products. 62(1)
The insecticidal activity of five alkylfurans against the generalist insect herbivore beet armyworm, Spodoptera exigua, was examined. Two naturally occurring compounds, the avocadofurans 2-(pentadecyl)furan (1) and 2-(heptadecyl)furan (2), previously
Publikováno v:
Journal of medicinal chemistry. 37(15)
The C-14 epimers of vitamin D, 14-epi-25-hydroxyvitamin D3 (4) and 14-epi-1 alpha, 25-dihydroxyvitamin D3 (5), were synthesized, and their isomerization via [1,7]-sigmatropic hydrogen shifts to the corresponding previtamin forms (4' and 5', respectiv