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Featured researches published by N. Ravindran.


Journal of Organometallic Chemistry | 1973

The reaction of alkynes with dichloroborane ethyl etherate in the presence of boron trichloride. A simple, general synthesis of alkenyldichloroboranes

Herbert C. Brown; N. Ravindran

Abstract The hydroboration of alkynes with dichloroborane ethyl etherate induced by boron trichloride in pentane gives alkenyldichloroboranes providing, for the first time, a simple, general synthesis of these compounds and their derivatives.


Journal of the American Chemical Society | 1973

Reaction of alkenylboronic acids with iodine under the influence of base. Simple procedure for the stereospecific conversion of terminal alkynes into trans-1-alkenyl iodides via hydroboration

Herbert C. Brown; Tsutomu Hamaoka; N. Ravindran


Journal of the American Chemical Society | 1973

Stereospecific conversion of alkenylboronic acids into alkenyl bromides with inversion of configuration. Striking differences in the stereochemistry of the replacement of the boronic acid substituent by bromine and iodine and its significance in terms of the reaction mechanism

Herbert C. Brown; Tsutomu Hamaoka; N. Ravindran


Journal of the American Chemical Society | 1976

Hydroboration. XL. Hydroboration of alkenes and alkynes with monochloroborane etherates. Convenient procedures for the preparation of dialkyl-, monoalkyl-, and dialkenylchloroboranes and their derivatives

Herbert C. Brown; N. Ravindran


Journal of Organic Chemistry | 1980

Hydroboration. 54. New general synthesis of alkyldihaloboranes via hydroboration of alkenes with dihaloborane-dimethyl sulfide complexes. Unusual trends in the reactivities and directive effects

Herbert C. Brown; N. Ravindran; Surendra U. Kulkarni


Journal of Organic Chemistry | 1979

Hydroboration. 52. Monohaloborane-methyl sulfide adducts as new reagents for the hydroboration of alkenes. A convenient synthesis of dialkylhaloboranes and their derivatives for organic synthesis

Herbert C. Brown; N. Ravindran; Surendra U. Kulkarni


Journal of Organic Chemistry | 1989

Vinylic organoboranes. 14. A stereospecific synthesis of (E)-1-halo-1-alkenes from 1-alkynes

C Herbert Brown; Tsutomu Hamaoka; N. Ravindran; Chitti Subrahmanyam; Vishwanatha Somayaji; N. G. Bhat


Journal of Organic Chemistry | 1989

Vinylic organoboranes. 13. A convenient stereospecific synthesis of (Z)-1-halo-1-alkenes from 1-alkynes via (E)-1-alkenylborane derivatives with halogens

Herbert C. Brown; Chitti Subrahmanyam; Tsutomu Hamaoka; N. Ravindran; Donald H. Bowman; Soichi Misumi; Maniketh K. Unni; Vishwanatha Somayaji; N. G. Bhat


Journal of the American Chemical Society | 1976

Hydroboration. XLI. Hydroboration of alkenes and alkynes with dichloroborane etherates. Convenient procedures for the preparation of alkyl- and alkenyldichloroboranes and their derivatives

Herbert C. Brown; N. Ravindran


Inorganic Chemistry | 1977

Molecular addition compounds. 3. Redistribution of borane-methyl sulfide with boron trichloride-methyl sulfide and boron tribromide-methyl sulfide as convenient routes to the corresponding haloborane-methyl sulfides

Herbert C. Brown; N. Ravindran

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