A convenient synthesis of allenes by the reaction of propargyl alcohols with grignard reagents using 1-chloro-2-methyl-n,n-tetramethylenepropenylamine

A convenient coupling reaction of allyl

A convenient coupling reaction of allyl alcohols with grignard reagents using 1-chloro-2-methyl-N,N-tetramethylenepropenylamine

✍ Tamotsu Fujisawa; Sachio Iida; Hisashi Yukizaki; Toshio Sato 📂 Article 📅 1983 🏛 Elsevier Science 🌐 French ⚖ 270 KB

l-C"nZoro-Z-methyZ-N,N-tetrarnethylenepropenyZcnnine was found to be a good condensatioz reagent for a regioselective coupling reaction of a2132 aZeohoZs with Grignard reagents under mitd conditions to afford olefinic products. The allylic unit is a common structural feature of many natural compoun

A convenient synthesis of symmetrical N,

A convenient synthesis of symmetrical N,N′-dialkylureas by the reactions of 4-chloro-5H-1,2,3-dithiazol-5-one with alkylamines

✍ Yong-Goo Chang; Hyi-Seung Lee; Kyongtae Kim 📂 Article 📅 2001 🏛 Elsevier Science 🌐 French ⚖ 86 KB

Treatment of 4-chloro-5H-1,2,3-dithiazol-5-one with primary and secondary alkylamines (>2 equiv.) in CH 2 Cl 2 at rt afforded symmetrical N,N%-disubstituted ureas in moderate to good yields. Similarly, the reactions with amino acid ester hydrochlorides in the presence of Et 3 N (>3 equiv.) under the

ChemInform Abstract: A Convenient Synthe

ChemInform Abstract: A Convenient Synthesis of Symmetrical N,N′-Dialkylureas by the Reactions of 4-Chloro-5H-1,2,3-dithiazol-5-one with Alkylamines.

✍ Yong-Goo Chang; Hyi-Seung Lee; Kyongtae Kim 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 28 KB 👁 2 views

## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable v

A remarkable tendency of o-lithio-N-(2-l

A remarkable tendency of o-lithio-N-(2-lithiooxyethyl)-N-methyl-aniline to form heterocyclic derivatives by its reaction with dichlorodialkylsilanes or silicon tetrachloride. Synthesis of 2,5,1-benzoxazasilepines and of the silaspiro analogue

✍ Ioannis D. Kostas; Constantinos G. Screttas; Catherine P. Raptopoulou; Aris Terz 📂 Article 📅 1997 🏛 Elsevier Science 🌐 French ⚖ 221 KB

The synthesis of 2,5,l-benzoxazasilepines 3 or the benzoxazasilaspiro compound 4, has been achieved by the reaction of o-lithio-N-(2-1ithiooxyethyl)-N-methyl-aniline (2) with R2SiC12 (R = Me, Et, Ph) or SiCI 4, respectively. The reaction led to the formation of cyclic products, even under conditions

ChemInform Abstract: A Remarkable Tenden

ChemInform Abstract: A Remarkable Tendency of o-Lithio-N-(2-lithiooxyethyl)-N-methyl-aniline to Form Heterocyclic Derivatives by Its Reaction with Dichlorodialkylsilanes or Silicon Tetrachloride. Synthesis of 2,5,1-Benzoxazasilepines and of the Silaspiro Analogue.

✍ I. D. KOSTAS; C. G. SCRETTAS; C. P. RAPTOPOULOU; A. TERZIS 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 31 KB 👁 2 views

## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable v

ChemInform Abstract: Syntheses with Perf

ChemInform Abstract: Syntheses with Perfluoroalkyl Radicals from Perfluoroalkyl Iodides. Syntheses with Perfluoroalkyl Iodides. A Review. Part 3. Addition of RFI to Norbornene Esters, Acids and Anhydrides, Alkenoic Acids and Esters, Alkenylsuccinic Anhydrides or Diesters, and to Vinyl Monomers; Lactonization and Other Reactions of Adducts; Hydroperfluoroalkylation by RFI; Synthesis and Reactions of I(CF2)nI Homologues (n = 1—3); Perfluoroalkylation of Arenes by RFI or [RFCO2]2; RF in the Synthesis of RFSR and Segmented RF(CH2)nSH; and, Useful Derivatives Therefrom

✍ Neal O. Brace 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 34 KB 👁 1 views

## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable v