Volume 31; Issue 23

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Tetrahedron Letters
Volume 31; Issue 23

Tetrahedron Letters

Volume 31; Issue 23

1

Graphical abstracts

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 456 KB

english, 1990

2

Conjugate reduction of polyfunctional α,β-unsaturated carbonyl compounds using [(Ph3P)CuH]6. Compatibility with halogen, sulfonate, and γ-oxygen and sulfur substituents

Thomas M. Koenig, John F. Daeuble, Donna M. Brestensky, Jeffrey M. Stryker

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 301 KB

english, 1990

3

Clay catalyzed rearrangement of substituted allyl phenyl ethers: Synthesis of ortho-allyl phenols, chromans and coumarans

William G. Dauben, Jeffrey M. Cogen, Victor Behar

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 222 KB

english, 1990

4

Single step formation of novel tricyclic systems on [3 + 2] photocycloaddition of 3-(1-alkynyl)cyclohexenones to methoxyalkenes

Paul Margaretha, H.-J Rathjen, William C Agosta

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 208 KB

english, 1990

5

Stereospecific syntheses of 3-spiro-epoxyazetidin-2-ones

Kumar Sharma Madan, Tony Durst

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 243 KB

english, 1990

6

Preparation of cyclohexenyl derivatives by the ring-opening reactions of oxabicyclo[2.2.1] compounds with cuprates

Mark Lautens, A. Catherine Smith, Alaa S. Abd-El-Aziz, Alexandre H. Huboux

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 297 KB

english, 1990

7

Synthesis of a phosphonate isostere of ganciclovir monophosphate: A highly cytomegalovirus active phosphonate nucleotide analogue

Choung Un Kim, Peter F Misco, Bing Y Luh, John C Martin

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 223 KB

english, 1990

8

The mild preparation of synthetically useful phosphonic dichlorides: Application to the synthesis of cyclic phosphonic diesters and diamides

Michael H.B. Stowell, Joseph M. Ueland, Ronald W. McClard

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 207 KB

english, 1990

9

Nitrosamines, N-nitrosoamides, and diazonium ions from tri-N-substituted amidines

Richard N. Loeppky, Li Yu

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 251 KB

english, 1990

10

Metal directed stereoselective synthesis of 3-(1′-hydroxyethyl)-2-azetidinones from ethyl 3-hydroxybutyrate

Gunda I. Georg, Eyüp Akgün

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 251 KB

english, 1990

11

Plakinidines: Cytotoxic alkaloid pigments from the fijian sponge plakortis sp.

Robert R. West, Charles L. Mayne, Chris M. Ireland, Linda S. Brinen, Jon Clardy

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 261 KB

english, 1990

12

A stereoselective osmylation approach to polyoxygenated natural products. Synthesis of C(1)-C(7) and C(7)-C(13) subunits of erythronolide A

Gyu Kim Young, Whang Konghyun, R.J. Cooke, Jin K. Cha

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 284 KB

english, 1990

13

Synthesis of (2R, 6R)-(−)-2,6-lupetidine: 2,6-disubstituted piperidines as potentially useful “C2-symmetric” chiral reagents.

Samir Najdi, Mark J Kurth

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 285 KB

english, 1990

14

A chemoenzymatic synthesis of the C10-C19 moiety of fk506

Rui-Lin Gu, Charles J. Sih

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 211 KB

english, 1990

15

Synthesis of the C10-C34 segment of the immunosuppressant FK506

Rui-Lin Gu, Charles J. Sih

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 221 KB

english, 1990

16

A convergent process to C-2 substituted peneme via addition of thiols and organocuprates to an O-triflylthioketene acetal

Douglas Phillips, Brian T O'Neill

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 279 KB

english, 1990

17

Calix[4]arenes with resorcinol units incorporated in 2,6-position

Monir Tabatabai, Walter Vogt, Volker Böhmer

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 188 KB

english, 1990

18

Cyano substituted ozonides: Preparation, properties and unusual behavior towards reducing agents

Karl Griesbaum, Huh Tae-Seong, Sven-Hendrik Gutsche

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 124 KB

english, 1990

19

Reaktionen von ethinyltriphenylphosphoniumsalzen mit phosphoniumyliden

Hans Jürgen Bestmann, Lothar Kisielowski

Journal:

Tetrahedron Letters

Year:

1990

Language:

german

File:

PDF, 223 KB

german, 1990

20

Mechanism of primary aliphatic amines oxidation to nitriles by the cuprous chloride - dioxygen - pyridine system.

P. Capdevielle, A. Lavigne, D. Sparfel, J. Baranne-Lafont, Kim Cuong Nguyen, M. Maumy

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 266 KB

english, 1990

21

The photo- and thermal cis-trans isomerization of [23](4,4′)azobenzenophane

Nobuyuki Tamaoki, Kenichi Koseki, Tsuguo Yamaoka

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 256 KB

english, 1990

22

Enantioselective approach to the steroid skeleton by conjugate addition of alkenylcopper-phosphine complexes. Total syntheses of estrone methyl ether and its 7-alkylated derivative

Takayuki Doi, Katsuya Shimizu, Takashi Takahashi, Jiro Tsuji, Keiji Yamamoto

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 267 KB

english, 1990

23

Stereo- and enantioselective total synthesis of sarcophytol-A

Hisao Takayanagi, Yasunori Kitano, Yasuhiro Morinaka

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 215 KB

english, 1990

24

Structure of a novel steroidal saponin, pachastrelloside A, obtained from a marine sponge of the genus pachastrella

Hiroshi Hirota, Seiji Takayama, Shigeyoshi Miyashiro, Yoshihiro Ozaki, Susumu Ikegami

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 274 KB

english, 1990

25

Enantiocontrolled synthesis of natural (+)-bakuchiol

Seiichi Takano, Youichi Shimazaki, Kunio Ogasawara

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 149 KB

english, 1990

26

Synthetic studies on (−)-tetrodotoxin (3) nitrogenation through overman rearrangement and guanidine ring formation

Minoru Isobe, Yoshio Fukuda, Toshio Nishikawa, Philippe Chabert, Takatoshi Kawai, Toshio Goto

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 247 KB

english, 1990

27

A new system for molecular recognition: Highly specific inclusion of (S)-isopropyl phenyl sulfoxide by solid (R)-phenylglycyl-(R)-phenylglycine

Katsuyuki Ogura, Tohru Uchida, Makoto Noguchi, Masanori Minoguchi, Atsuko Murata, Makoto Fujita, Koreharu Ogata

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 271 KB

english, 1990

28

Stereoselective construction of three- and four-contiguous asymmetric centers: Novel possibility by alkylative rearrangement of epoxy silyl ethers

Masato Shimazaki, Munetsugu Morimoto, Keisuke Suzuki

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 255 KB

english, 1990

29

The use of 2,6-anhydro-2-thio sugar for a highly stereocontrolled glycosylation: A novel strategy for synthesis of 2,6-dideoxy-α-glycosides

Kazunobu Toshima, Satsuki Mukaiyama, Takashi Ishiyama, Kuniaki Tatsuta

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 258 KB

english, 1990

30

Unusual reactivity of azomethine ylides due to electronic effects: A novel route to 5-alkylidene-3-oxazolines

M.Narayana Rao, A.G Holkar, N.R Ayyangar

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 238 KB

english, 1990

31

Synthetic studies on indole alkaloids. II. Applications of phenylsulfonylindoles on intramolecular cyclizations

Mario Rubiralta, Anna Diez, Cristina Vila

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 249 KB

english, 1990

32

1,3-Aminoalcohols by reductive cleavage of isoxazolidines with molybdenum hexacarbonyl

Stefano Cicchi, Andrea Goti, Alberto Brandi, Antonio Guarna, Francesco De Sarlo

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 231 KB

english, 1990

33

A simple route to methyl 5S-(benzoyloxy)-6-oxohexanoate, a key intermediate in leukotriene synthesis

Roy Hayes, Timothy W. Wallace

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 159 KB

english, 1990

34

A new method of introducing a trifluoromethyl group into an aromatic ring

Marko Zupan, Zvonko Bregar

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 158 KB

english, 1990

35

Dimethyldioxirane conversion of phosphine sulfides and phosphorothioates into their corresponding oxygen analogues

Francisco Sánchez-Baeza, Gaël Durand, Damiá Barceló, Angel Messeguer

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 226 KB

english, 1990

36

Synthesis of ikarugamycin: Studies on the carbotricyclic sub-unit

Raymond C.F. Jones, Richard F. Jones

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 307 KB

english, 1990

37

Synthesis of ikarugamycin: Model studies on a new strategy for the closure of ring C

Raymond C.F. Jones, Richard F. Jones

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 148 KB

english, 1990