Author

ROY M. LETCHER

Observed names: Letcher, R.M., R. Letcher, R. M. LETCHER, R. M. Letcher, R.M. Letcher, Roy M. Letcher

Observed institutions: Hong Kong Polytechnic University, Council for Scientific and Industrial Research, Imperial College London, University of Hong Kong

OpenAlex ID: A5083345993

Chemical constituents of the Combretaceae. Part II. Substituted phenanthrenes and 9,10-dihydrophenanthrenes and a substituted bibenzyl from the heartwood of Combretum molle

1972 · R. M. Letcher, L. R. M. Nhamo, et al. · Journal of the Chemical Society Perkin Transactions 1 · 83

Identification and activity of wyerone acid as a phytoalexin in broad bean (vicia faba) after infection by botrytis

1970 · R.M. Letcher, D.A. Widdowson, et al. · Phytochemistry · 77

Chemical constituents of the combretaceae. Part III. Substituted phenanthrenes, 9,10-dihydrophenanthrenes, and bibenzyls from the heartwood of Combretum psidioides

1972 · R. M. Letcher, L. R. M. Nhamo · Journal of the Chemical Society Perkin Transactions 1 · 67

Phenol oxidation and biosynthesis. Part XXII. The alkaloids of Erythrina lysistemon, E. abyssinica, E. poeppigiana, E. fusca, and E. Lithosperma; the structure of erythratidine

1973 · Derek H. R. Barton, Abeysinghe A. L. Gunatilaka, et al. · Journal of the Chemical Society Perkin Transactions 1 · 38

A Concise Total Synthesis of Triptolide

1998 · Dan Yang, Xiang-Yang Ye, et al. · The Journal of Organic Chemistry · 37

Chemical constituents of the combretaceae. Part I. Substituted phenanthrenes and 9,10-dihydrophenanthrenes from the heartwood of Combretum apiculatum

1971 · R. M. Letcher, L. R. M. Nhamo · Journal of the Chemical Society C Organic · 34

Structure and synthesis of the phenanthrenes Tal and TaV from Tamus communis

1978 · Roy M. Letcher, Kum-Moon Wong · Journal of the Chemical Society Perkin Transactions 1 · 31

Synthesis of C-ring substituted xanthones from the [4 + 2] cycloaddition reaction of vinylchromones and acyclic enamines

2000 · Avijit S. Kelkar, Roy M. Letcher, et al. · Journal of the Chemical Society Perkin Transactions 1 · 24

Chemical constituents of the combretaceae. Part IV. Phenanthrene derivatives from the heartwood of Combretum hereroense

1973 · Roy M. Letcher, Llewellyn R. M. Nhamo · Journal of the Chemical Society Perkin Transactions 1 · 23

o-Naphthoquinones from the heartwood of Azanza garckeana

1992 · Roy M. Letcher, I.M. Shirley · Phytochemistry · 20

Structure and synthesis of the growth inhibitor batatasin I from Dioscorea batatas

1973 · Roy M. Letcher · Phytochemistry · 19

Phenolic compounds from the heartwood of Dalbergia nitidula

1976 · Roy M. Letcher, Ian M. Shirley · Phytochemistry · 18

Oxazolo[3,2-a]indoles, pyrrolo- and azepino-[1,2-a]indoles from 3H-indole 1-oxides and acetylenecarboxylic esters by skeletal rearrangements

1993 · Roy M. Letcher, Della W. M. Sin, et al. · Journal of the Chemical Society Perkin Transactions 1 · 17

Chemistry of lichen constituents—VI: Mass spectra of usnic acid, lichexanthone and their derivatives

1968 · R. M. Letcher · Organic Mass Spectrometry · 17

The synthesis of various cycloalkana[d ]xanthones and conversion of the cyclohexa-analogue to a 7,7a-dimethylcyclohexa[d ]xanthene †

1998 · Roy M. Letcher, Tai-Yuen Yue, et al. · Journal of the Chemical Society Perkin Transactions 1 · 16

Structure of orchinol, loroglossol, and hircinol

1973 · Roy M. Letcher, Llewellyn R. M. Nhamo · Journal of the Chemical Society Perkin Transactions 1 · 16

Erythristemine, a new alkaloid from Erythrina lysistemon: a spectroscopic and crystallographic study

1970 · D. H. R. Barton, P. N. Jenkins, et al. · Journal of the Chemical Society D Chemical Communications · 16

956. The Senecio alkaloids. Part XVI. The biosynthesis of the “necine” bases from carbon-14 precursors

1964 · C. A. Hughes, R. Letcher, et al. · Journal of the Chemical Society (Resumed) · 16

Novel heterocycles from 5-methyldibenz[b,f ]azocin-6,12-dione and its derivatives

1998 · Roy M. Letcher, Nai-Chiu Kwok, et al. · Journal of the Chemical Society Perkin Transactions 1 · 14

First synthesis of spiro[benzofuran-2,1′-isobenzofuran]-3,3′-dione and its X-ray crystal structure

1992 · Roy M. Letcher, Nai-Chiu Kwok, et al. · Journal of the Chemical Society Perkin Transactions 1 · 14

A new xanthone synthesis from the Diels–Alder reaction between 2-vinylchromen-4-ones and cyclopentanone enamine

1992 · Roy M. Letcher, Tai-Yuen Yue · Journal of the Chemical Society Chemical Communications · 14

Vicinal C,H spin coupling constants in determining alkene stereochemistry

1981 · R. M. Letcher, R. M. Acheson · Organic Magnetic Resonance · 14

Chemistry of lichen constituents. Part IV

1967 · R.M. Letcher, S.H. Eggers · Tetrahedron Letters · 14

The anisotropic effect of 4‐substituents on the 1H NMR chemical shift of H‐5 in phenanthrenes

1981 · R. M. Letcher · Organic Magnetic Resonance · 12

A revised structure for the tetra-substituted phenanthrene from

1972 · R.M. Letcher, L.R.M. Nhamo · Tetrahedron Letters · 12

Works count: 97

Citation count: 765

H-index: 16

I10-index: 26